Details of the Researcher

PHOTO

Noboru Watanabe
Section
Institute of Multidisciplinary Research for Advanced Materials
Job title
Associate Professor
Degree

  • 博士（工学）（東北大学）

Research History 7

  • 2012/01 - Present
    Tohoku University　Institute of Multidisciplinary Research for Advanced Materials　Associate Professor

  • 2007/04 - 2012/12
    Tohoku University　Institute of Multidisciplinary Research for Advanced Materials　Assistant Professor

  • 2004/04 - 2007/03
    Tohoku University　Institute of Multidisciplinary Research for Advanced Materials　Research associate

  • 2003/04 - 2004/03
    Institute for Molecular Science　Research associate

  • 2001/04 - 2003/03
    Tohoku University　Institute of Multidisciplinary Research for Advanced Materials　Research associate

  • 2001/06 - 2002/06
    University of Maryland

  • 1999/03 - 2001/03
    Tohoku University　Research Institute for Scientific Measurements　Research associate

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Education 3

  • 東北大学大学院　工学研究科　応用物理学専攻 博士後期課程

    1996/04 - 1998/09

  • 東北大学大学院　工学研究科　応用物理専攻 博士前期課程

    1994/04 - 1996/03

  • Tohoku University　Faculty of Engineering

    1990/04 - 1994/04

Committee Memberships 4

  • 日本学術振興会　特別研究員等審査会専門委員

    2021/06 - 2023/06

  • 原子衝突学会　庶務幹事

    2014/04 - 2016/03

  • 原子衝突学会　運営委員

    2012/04 - 2016/03

  • 日本物理学会　領域１ 運営委員

    2011/05 - 2012/03

Professional Memberships 4

  • 原子衝突学会

  • 分子科学会

  • 日本物理学会

  • 日本化学会

Research Interests 1

  • electron spectroscopy

Research Areas 2

  • Natural sciences / Semiconductors, optical and atomic physics /

  • Nanotechnology/Materials / Basic physical chemistry /

Awards 2

  1. The 2012 Young Scientist Awards of the Japan Society for Molecular Science

    2012/09　Japan Society for molecular Science　X-ray and Electron Scattering Studies on Electronic Structures and Electronic Excitation Dynamics of Molecules

  2. 籏野基金

    2006/12　東北大学 多元物質科学研究所　X線及び電子線散乱実験を用いた電子相関の研究

Papers 79

  1. Theoretical study of valence excitations in CFCl3 and CF2Cl2 on the basis of generalized oscillator strengths Peer-reviewed

    Noboru Watanabe, Masahiko Takahashi

    Chemical Physics　594　112676-1-9　2025/06

    Publisher: Elsevier BV

    DOI： 10.1016/j.chemphys.2025.112676 　

    ISSN： 0301-0104

  2. Theoretical atomic momentum spectroscopy of diatomic, triatomic and polyatomic molecules Peer-reviewed

    Satoru Kanaya, Yuuki Onitsuka, Noboru Watanabe, Hirohiko Kono, Masahiko Takahashi

    Physical Chemistry Chemical Physics　27　2453-2461　2025

    DOI： 10.1039/D4CP04339A 　

  3. Electron momentum spectroscopy study of 1,3-dimethyladamantane: Methyl substitution effects on the outer valence orbitals Peer-reviewed

    Noboru Watanabe, Keishi Fujiwara, Masahiko Takahashi

    Chemical Physics　586　112412-1-8　2024/10

    Publisher: Elsevier BV

    DOI： 10.1016/j.chemphys.2024.112412 　

    ISSN： 0301-0104

  4. Theoretical study of valence excitations in fluoromethanes by high energy electron impact Peer-reviewed

    Noboru Watanabe, Masahiko Takahashi

    Chemical Physics　581　112265-1-11　2024/05

    DOI： 10.1016/j.chemphys.2024.112265 　

  5. Electron-impact dissociative ionization of SF6 studied by angle-resolved (e, e+ion) spectroscopy Peer-reviewed

    Noboru Watanabe, Masahiko Takahashi

    Physical Review A　108　(4)　042814-1-9　2023/10/19

    Publisher: American Physical Society (APS)

    DOI： 10.1103/physreva.108.042814 　

    ISSN： 2469-9926

    eISSN： 2469-9934

  6. Theoretical Study of Valence Shell Excitation by Electron Impact in CCl4 Peer-reviewed

    Noboru Watanabe, Masahiko Takahashi

    The Journal of Physical Chemistry A　127　(8)　1866-1873　2023/02/21

    Publisher: American Chemical Society (ACS)

    DOI： 10.1021/acs.jpca.2c08619 　

    ISSN： 1089-5639

    eISSN： 1520-5215

  7. A joint experimental and theoretical study of the valence electron momentum distributions of trans-stilbene Peer-reviewed

    Noboru Watanabe, Kenichi Kume, Masahiko Takahashi

    Journal of Electron Spectroscopy and Related Phenomena　259　147240-147240　2022/08

    Publisher: Elsevier BV

    DOI： 10.1016/j.elspec.2022.147240 　

    ISSN： 0368-2048

  8. Theoretical study of generalized oscillator strengths for the low-lying electronic excitations of CH3Cl and CF3Cl Peer-reviewed

    Noboru Watanabe, Masahiko Takahashi

    Journal of Physics B: Atomic, Molecular and Optical Physics　55　(1)　015201-1-10　2022/01/05

    Publisher: {IOP} Publishing

    DOI： 10.1088/1361-6455/ac4a22 　

    ISSN： 0953-4075

    eISSN： 1361-6455

    More details Close

    Abstract We report a theoretical study of electronic excitation in CH3Cl and CF3Cl by electron impact. Momentum-transfer-dependent generalized oscillator strengths (GOSs) are calculated for transitions to low-lying excited singlet-states at the equation-of-motion coupled-cluster singles and doubles level. The influence of molecular vibration is taken into account in the calculation. The theoretical results show reasonable overall agreement with experimental data reported in the literature. The shapes of the GOS profiles reveal that the 1 1E state of CH3Cl has a valence-Rydberg mixed nature, while that of CF3Cl is of a predominant C–Cl antibonding character. A comparison with the experimental GOSs of CH3Cl provides unambiguous evidence that the 3pe state is lower in energy than the 3pa1 state. Optical oscillator strengths are also calculated and comparison is made with available experimental and other theoretical results.

  9. Symmetry breaking in electron-impact dissociative ionization of linear symmetric molecules Peer-reviewed

    Noboru Watanabe, Masahiko Takahashi

    Physical Review A　104　(3)　032812-1-5　2021/09/09

    Publisher: American Physical Society ({APS})

    DOI： 10.1103/PhysRevA.104.032812 　

    ISSN： 2469-9926 2469-9934

    eISSN： 2469-9934

  10. Vibrational effects on generalized oscillator strengths of ammonia Peer-reviewed

    Noboru Watanabe, Masahiko Takahashi

    Journal of Physics B: Atomic, Molecular and Optical Physics　54　(13)　135202-135202　2021/07/07

    Publisher: {IOP} Publishing

    DOI： 10.1088/1361-6455/ac0769 　

    ISSN： 0953-4075 1361-6455

    eISSN： 1361-6455

  11. Temperature-Dependent Electron Momentum Spectroscopy on the Molecular Orbitals of Dimethyl Ether Peer-reviewed

    Noboru Watanabe, Keita Takahashi, Kimihiro Sato, Masahiko Takahashi

    The Journal of Physical Chemistry A　124　(49)　10258-10265　2020/12/10

    Publisher: American Chemical Society (ACS)

    DOI： 10.1021/acs.jpca.0c08799 　

    ISSN： 1089-5639

    eISSN： 1520-5215

  12. Forward–backward asymmetry in electron impact ionization of CO Peer-reviewed

    Noboru Watanabe, Masahiko Takahashi

    The Journal of Chemical Physics　152　(16)　164301-1-7　2020/04/30

    DOI： 10.1063/5.0006256 　

    ISSN： 1089-7690

  13. Generalized oscillator strengths of low-lying electronic excitations in acetylene Peer-reviewed

    Noboru Watanabe, Mashiko Takahashi

    Journal of Physics B: Atomic, Molecular and Optical Physics　53　(7)　075202-1-8　2020/04/14

    DOI： 10.1088/1361-6455/ab6cc5 　

    ISSN： 1361-6455

  14. Revisiting electron-correlation effects on valence shake-up satellites of neon Peer-reviewed

    Noboru Watanabe, Masahiko Takahashi

    Physical Review A　100　(3)　032710-1-8　2019/09/20

    Publisher: American Physical Society ({APS})

    DOI： 10.1103/PhysRevA.100.032710 　

    ISSN： 2469-9926 2469-9934

  15. Vibrational effects on electron-impact valence excitations of SF6 Peer-reviewed

    Noboru Watanabe, Tsukasa Hirayama, Masahiko Takahashi

    Physical Review A　99　(6)　062708-1-8　2019/06/20

    DOI： 10.1103/physreva.99.062708 　

    ISSN： 2469-9926 2469-9934

  16. Electron momentum spectroscopy study on the valence electronic structure of methyl formate Peer-reviewed

    Noboru Watanabe, Kimihiro Sato, Masahiko Takahashi

    The Journal of Chemical Physics　150　(19)　194306-1-9　2019/05/21

    Publisher: {AIP} Publishing

    DOI： 10.1063/1.5097201 　

  17. (e, e+ion) study on electron-induced dissociative ionization of O2 Peer-reviewed

    Noboru Watanabe, So Yamada, Masahiko Takahashi

    Physical Review A　99　(2)　022704-1-11　2019/02

    DOI： 10.1103/PhysRevA.99.022704 　

  18. Development of an electron-ion coincidence apparatus for molecular-frame electron energy loss spectroscopy studies Peer-reviewed

    Noboru Watanabe, Tsukasa Hirayama, So Yamada, Masahiko Takahashi

    Review of Scientific Instruments　89　(4)　043105-1-10　2018/04/01

    Publisher: American Institute of Physics Inc.

    DOI： 10.1063/1.5025773 　

    ISSN： 1089-7623 0034-6748

  19. Stereodynamics of electron-induced dissociative ionization of N2 studied by (e, e+ion) spectroscopy Peer-reviewed

    Noboru Watanabe, So Yamada, Masahiko Takahashi

    Physical Chemistry Chemical Physics　20　(2)　1063-1071　2018

    Publisher: Royal Society of Chemistry

    DOI： 10.1039/c7cp06753d 　

    ISSN： 1463-9076

  20. Molecular-frame electron-scattering experiment on the dipole-forbidden 2 sigma(g) -> 1 pi(g) transition of N-2 Peer-reviewed

    Noboru Watanabe, So Yamada, Masahiko Takahashi

    PHYSICAL REVIEW A　95　(6)　060702(R)-1-5　2017/06

    DOI： 10.1103/PhysRevA.95.060702 　

    ISSN： 2469-9926

    eISSN： 2469-9934

  21. Influence of molecular vibrations on the valence electron momentum distributions of adamantane Peer-reviewed

    Filippo Morini, Noboru Watanabe, Masataka Kojima, Michael Simon Deleuze, Masahiko Takahashi

    JOURNAL OF CHEMICAL PHYSICS　146　(9)　094307-1-10　2017/03

    DOI： 10.1063/1.4977060 　

    ISSN： 0021-9606

    eISSN： 1089-7690

  22. Electron Momentum Spectroscopy Investigation of Molecular Conformations of Ethanol Considering Vibrational Effects Peer-reviewed

    Yaguo Tang, Xu Shan, Shanshan Niu, Zhaohui Liu, Enliang Wang, Noboru Watanabe, Masakazu Yamazaki, Masahiko Takahashi, Xiangjun Chen

    JOURNAL OF PHYSICAL CHEMISTRY A　121　(1)　277-287　2017/01

    DOI： 10.1021/acs.jpca.6b10009 　

    ISSN： 1089-5639

  23. Interference effects on (e, 2e) electron momentum profiles: a comparative study for CCl4 and CF4 Peer-reviewed

    Noboru Watanabe, Keisuke Katafuchi, Masakazu Yamazaki, Masahiko Takahashi

    EUROPEAN PHYSICAL JOURNAL D　70　(12)　268-1-7　2016/12

    DOI： 10.1140/epjd/e2016-70516-7 　

    ISSN： 1434-6060

    eISSN： 1434-6079

  24. Vibrational Effects on Electron Momentum Distributions of Outer Valence Orbitals of Oxetane Peer-reviewed

    Yaguo Tang, Xu Shan, Jing Yang, Shanshan Niu, Zhe Zhang, Noboru Watanabe, Masakazu Yamazaki, Masahiko Takahashi, Xiangjun Chen

    JOURNAL OF PHYSICAL CHEMISTRY A　120　(34)　6855-6863　2016/09

    DOI： 10.1021/acs.jpca.6b06706 　

    ISSN： 1089-5639

  25. Relationship between interference pattern and molecular orbital shape in (e, 2e) electron momentum profiles of SF6 Peer-reviewed

    Noboru Watanabe, Masakazu Yamazaki, Masahiko Takahashi

    JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA　209　78-86　2016/05

    DOI： 10.1016/j.elspec.2016.04.004 　

    ISSN： 0368-2048

    eISSN： 1873-2526

  26. Electron momentum spectroscopy of dimethyl ether taking account of nuclear dynamics in the electronic ground state Peer-reviewed

    Filippo Morini, Noboru Watanabe, Masataka Kojima, Michael Simon Deleuze, Masahiko Takahashi

    JOURNAL OF CHEMICAL PHYSICS　143　(13)　134309-1-11　2015/10

    DOI： 10.1063/1.4931918 　

    ISSN： 0021-9606

    eISSN： 1089-7690

  27. Theoretical study of molecular vibrations in electron momentum spectroscopy experiments on furan: An analytical versus a molecular dynamical approach Peer-reviewed

    Filippo Morini, Michael S. Deleuze, Noboru Watanabe, Masahiko Takahashi

    JOURNAL OF CHEMICAL PHYSICS　142　(9)　094308-1-13　2015/03

    DOI： 10.1063/1.4913642 　

    ISSN： 0021-9606

    eISSN： 1089-7690

  28. Vibrational effects on valence electron momentum distributions of CH2F2 Peer-reviewed

    Noboru Watanabe, Masakazu Yamazaki, Masahiko Takahashi

    JOURNAL OF CHEMICAL PHYSICS　141　(24)　244314-1-8　2014/12

    DOI： 10.1063/1.4904705 　

    ISSN： 0021-9606

    eISSN： 1089-7690

  29. Oscillation of the electron-density distribution in momentum space: An (e, 2e) study of H2 at large momentum transfer Peer-reviewed

    Masakazu Yamazaki, Hironori Satoh, Noboru Watanabe, Darryl B. Jones, Masahiko Takahashi

    PHYSICAL REVIEW A　90　(5)　052711-1-5　2014/11

    DOI： 10.1103/PhysRevA.90.052711 　

    ISSN： 1050-2947

    eISSN： 1094-1622

  30. Vibronic effects on the low-lying electronic excitations in N2O induced by electron impact Peer-reviewed

    Noboru Watanabe, Masahiko Takahashi

    JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS　47　(15)　155203-1-7　2014/08

    DOI： 10.1088/0953-4075/47/15/155203 　

    ISSN： 0953-4075

    eISSN： 1361-6455

  31. Vibronic effects on the low-lying electronic excitations in CO2 induced by electron impact Peer-reviewed

    Noboru Watanabe, Tsukasa Hirayama, Daisuke Suzuki, Masahiko Takahashi

    JOURNAL OF CHEMICAL PHYSICS　138　(18)　184311-1-10　2013/05

    DOI： 10.1063/1.4804190 　

    ISSN： 0021-9606

  32. Molecular-frame (e,2e) experiment for N2 at large momentum transfer Peer-reviewed

    D. B. Jones, M. Yamazaki, N. Watanabe, M. Takahashi

    PHYSICAL REVIEW A　87　(2)　022714-1-5　2013/02

    DOI： 10.1103/PhysRevA.87.022714 　

    ISSN： 1050-2947

  33. Electron-impact ionization of N2 at large momentum transfer above the double-ionization threshold Peer-reviewed

    D. B. Jones, M. Yamazaki, N. Watanabe, M. Takahashi

    PHYSICAL REVIEW A　86　(6)　062707-1-7　2012/12

    DOI： 10.1103/PhysRevA.86.062707 　

    ISSN： 1050-2947

    eISSN： 1094-1622

  34. Vibrational effects on valence electron momentum distributions of ethylene Peer-reviewed

    Noboru Watanabe, Masakazu Yamazaki, Masahiko Takahashi

    JOURNAL OF CHEMICAL PHYSICS　137　(11)　114301-1-8　2012/09

    DOI： 10.1063/1.4752653 　

    ISSN： 0021-9606

  35. Interference Effects on (e, 2e) Electron Momentum Profiles of CF4 Peer-reviewed

    Noboru Watanabe, XiangJun Chen, Masahiko Takahashi

    PHYSICAL REVIEW LETTERS　108　(17)　173201-1-5　2012/04

    DOI： 10.1103/PhysRevLett.108.173201 　

    ISSN： 0031-9007

  36. A highly sensitive electron momentum spectrometer incorporating a multiparticle imaging detector Peer-reviewed

    M. Yamazaki, H. Satoh, M. Ueda, D. B. Jones, Y. Asano, N. Watanabe, A. Czasch, O. Jagutzki, M. Takahashi

    MEASUREMENT SCIENCE AND TECHNOLOGY　22　(7)　075602-1-13　2011/07

    DOI： 10.1088/0957-0233/22/7/075602 　

    ISSN： 0957-0233

    eISSN： 1361-6501

  37. Vibronic effects on the 1t(1) -> 3s Rydberg excitation in CF4 induced by electron impact Peer-reviewed

    Noboru Watanabe, Daisuke Suzuki, Masahiko Takahashi

    JOURNAL OF CHEMICAL PHYSICS　134　(23)　234309-1-7　2011/06

    DOI： 10.1063/1.3601873 　

    ISSN： 0021-9606

    eISSN： 1089-7690

  38. Carbon 1s electron momentum spectroscopy of CF4 Peer-reviewed

    N. Watanabe, M. Takahashi

    JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS　44　(10)　105201-1-6　2011/05

    DOI： 10.1088/0953-4075/44/10/105201 　

    ISSN： 0953-4075

    eISSN： 1361-6455

  39. Experimental and theoretical study on generalized oscillator strengths of the valence-shell electronic excitations in CF4 Peer-reviewed

    Noboru Watanabe, Daisuke Suzuki, Masahiko Takahashi

    JOURNAL OF CHEMICAL PHYSICS　134　(6)　064307-1-12　2011/02

    DOI： 10.1063/1.3549135 　

    ISSN： 0021-9606

    eISSN： 1089-7690

  40. Electron-impact ionization of the water molecule at large momentum transfer above the double-ionization threshold Peer-reviewed

    D. B. Jones, M. Yamazaki, N. Watanabe, M. Takahashi

    PHYSICAL REVIEW A　83　(1)　012704-1-8　2011/01

    DOI： 10.1103/PhysRevA.83.012704 　

    ISSN： 1050-2947

  41. Electron impact ionization-excitation and double-ionization dynamics of He at large momentum transfer Invited Peer-reviewed

    N Watanabe, M Takahashi

    Journal of Physics: Conference Series　194　(1)　012018-012018　2009/11/01

    DOI： 10.1088/1742-6596/194/1/012018 　

    ISSN： 1742-6588

    eISSN： 1742-6596

  42. Double Electron Excitation Dynamics Studied By (E, 2E) Electron Momentum Spectroscopy Peer-reviewed

    N. Watanabe, M. Takahashi

    AIP Conference Proceedings　1150　78-83　2009

    DOI： 10.1063/1.3192300 　

    ISSN： 0094-243X

  43. Electron-impact double ionization of He at large momentum transfer studied by second-order Born-approximation calculations Peer-reviewed

    N. Watanabe, K. A. Kouzakov, Yu. V. Popov, M. Takahashi

    PHYSICAL REVIEW A　77　(3)　032725-1-5　2008/03

    DOI： 10.1103/PhysRevA.77.032725 　

    ISSN： 1050-2947

  44. Photoelectron-photoion-photoion momentum spectroscopy as a direct probe of the core-hole localization in C 1s photoionization of C2H2 Peer-reviewed

    Jun-ichi Adachi, Kouichi Hosaka, Takahiro Teramoto, Masakazu Yamazaki, Noboru Watanabe, Masahiko Takahashi, Akira Yagishita

    JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS　40　(20)　F285-F291　2007/10

    DOI： 10.1088/0953-4075/40/20/F01 　

    ISSN： 0953-4075

  45. Two-step mechanisms in ionization-excitation of He studied by binary (e,2e) experiments and second-Born-approximation calculations Peer-reviewed

    N. Watanabe, M. Takahashi, Y. Udagawa, K. A. Kouzakov, Yu. V. Popov

    PHYSICAL REVIEW A　75　(5)　052701-1-8　2007/05

    DOI： 10.1103/PhysRevA.75.052701 　

    ISSN： 1050-2947

  46. Observation of giant resonance phenomena in the two-step mechanism of electron-Xe collision Peer-reviewed

    M. Takahashi, Y. Miyake, N. Watanabe, Y. Udagawa, Y. Sakai, T. Mukoyama

    PHYSICAL REVIEW LETTERS　98　(1)　013201-1-4　2007/01

    DOI： 10.1103/PhysRevLett.98.013201 　

    ISSN： 0031-9007

  47. Examination of (e,2e) scattering models by comparison of momentum profiles of noble gases between experiment and theory Peer-reviewed

    Yusuke Miyake, Masahiko Takahashi, Noboru Watanabe, Yugal Khajuria, Yasuo Udagawa, Yasuhiro Sakai, Takeshi Mukoyama

    PHYSICAL CHEMISTRY CHEMICAL PHYSICS　8　(25)　3022-3028　2006/07

    DOI： 10.1039/b603117j 　

    ISSN： 1463-9076

  48. Two-step single-ionization mechanisms Peer-reviewed

    RW van Boeyen, N Watanabe, JW Cooper, JP Doering, JH Moore, MA Coplan

    PHYSICAL REVIEW A　73　(3)　032703-1-10　2006/03

    DOI： 10.1103/PhysRevA.73.032703 　

    ISSN： 2469-9926

    eISSN： 2469-9934

  49. Coincidence velocity imaging apparatus for study of angular correlations between photoelectrons and photofragments Peer-reviewed

    K Hosaka, J Adachi, AV Golovin, M Takahashi, N Watanabe, A Yagishita

    JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS　45　(3A)　1841-1849　2006/03

    DOI： 10.1143/JJAP.45.1841 　

    ISSN： 0021-4922

  50. Nondipole effects in the angular distribution of photoelectrons from the CK shell of the CO molecule Peer-reviewed

    K Hosaka, J Adachi, AV Golovin, M Takahashi, T Teramoto, N Watanabe, T Jahnke, T Weber, M Schoffler, L Schmidt, T Osipov, O Jagutzki, AL Landers, MH Prior, H Schmidt-Bocking, R Dorner, A Yagishita, SK Semenov, NA Cherepkov

    Physical Review A　73　(2)　022716-1-8　2006/02

    DOI： 10.1103/PhysRevA.73.022716 　

    ISSN： 2469-9926

    eISSN： 2469-9934

  51. Non-dipole effects in the angular distribution of photoelectrons from the K-shell of N2 molecule Peer-reviewed

    K. Hosaka, J. Adachi, A. V. Golovin, M. Takahashi, T. Teramoto, N. Watanabe, A. Yagishita, S. K. Semenov, N. A. Cherepkov

    Journal of Physics B: Atomic, Molecular and Optical Physics　39　(2)　L25-L34　2006/01/28

    Publisher: {IOP} Publishing

    DOI： 10.1088/0953-4075/39/2/L02 　

    ISSN： 0953-4075 1361-6455

  52. Two-step single-ionization mechanisms Peer-reviewed

    R. W. Van Boeyen, N. Watanabe, J. W. Cooper, J. P. Doering, J. H. Moore, M. A. Coplan

    Physical Review A - Atomic, Molecular, and Optical Physics　73　(3)　2006

    DOI： 10.1103/PhysRevA.73.032703 　

    ISSN： 1050-2947 1094-1622

  53. (e,3-1e) Reactions at Large Momentum Transfer: The Plane-Wave Second Born Approximation Invited Peer-reviewed

    Pavel S. Vinitsky, Yuri V. Popov, Konstantin A. Kouzakov, Noboru Watanabe, Masahiko Takahashi

    AIP Conference Proceedings　811　102-107　2006

    DOI： 10.1063/1.2165628 　

    ISSN： 0094-243X

  54. (e,2e) and (e,3-1e) studies on double processes of He near the Bethe ridge Invited Peer-reviewed

    N. Watanabe, Y. Khajuria, M. Takahashi, Y. Udagawa, P. S. Vinitsky, Yu. V, Popov, O, Chuluunbaatar, K. A. Kouzakov

    AIP Conference Proceedings　811　96-101　2006

    DOI： 10.1063/1.2165627 　

    ISSN： 0094-243X

  55. (e,2e) and (e,3-1e) studies on double processes of He at large momentum transfer Peer-reviewed

    Watanabe, N., Khajuria, Y., Takahashi, M., Udagawa, Y., Vinitsky, P.S., Popov, Yu.V., Chuluunbaatar, O., Kouzakov, K.A.

    Physical Review A - Atomic, Molecular, and Optical Physics　72　(3)　032705-1-032705-11　2005/09/09

    Publisher: American Physical Society ({APS})

    DOI： 10.1103/PhysRevA.72.032705 　

    ISSN： 1050-2947

    eISSN： 1094-1622

  56. Observation of a molecular frame (e,2e) cross section: An (e,2e plus M) triple coincidence study on H-2 Peer-reviewed

    M Takahashi, N Watanabe, Y Khajuria, Y Udagawa, JHD Eland

    PHYSICAL REVIEW LETTERS　94　(21)　213202-1-4　2005/06

    DOI： 10.1103/PhysRevLett.94.213202 　

    ISSN： 0031-9007

  57. Electron momentum spectroscopy of valence satellites of neon Peer-reviewed

    N Watanabe, Y Khajuria, M Takahashi, Y Udagawa

    JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA　142　(3)　325-334　2005/03

    DOI： 10.1016/j.elspec.2004.09.004 　

    ISSN： 0368-2048

  58. (e,2e) ionization-excitation experiment with fixed-in-space H2 molecules Invited Peer-reviewed

    M. Takahashi, N. Watanabe, Y. Khajuria, Y. Udagawa, J.H.D. Eland

    Proceedings of Japan-China Joint Seminar on Atomic and Molecular Processes in Plasma (NIFS-PROC Series, 2005)　59　97-103　2005/02

  59. Identification of double ionization mechanisms, results bearing on electron correlation measurements Peer-reviewed

    MA Coplan, RW van Boeyen, JH Moore, JP Doering, JW Cooper, N Watanabe

    ELECTRON AND PHOTON IMPACT IONIZATION AND RELATED TOPICS 2004　(183)　1-10　2005

    ISSN： 0951-3248

  60. Observation of molecular frame (e,2e) cross section using an electron-electron-fragment ion triple coincidence apparatus Peer-reviewed

    M Takahashi, N Watanabe, Y Khajuria, K Nakayama, Y Udagawa, JHD Eland

    JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA　141　(2-3)　83-93　2004/12

    DOI： 10.1016/j.elspec.2004.08.002 　

    ISSN： 0368-2048

  61. (e, 3e) collisions, on Mg in the impulsive regime studied by the second Born approximation Peer-reviewed

    N Watanabe, JW Cooper, RW Cooper, JP Doering, JH Moore, MA Coplan

    JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS　37　(22)　4551-4560　2004/11

    DOI： 10.1088/0953-4075/37/22/013 　

    ISSN： 0953-4075

    eISSN： 1361-6455

  62. Practical means for the study of electron correlation in atoms Peer-reviewed

    RW van Boeyen, N Watanabe, JP Doering, JH Moore, MA Coplan

    PHYSICAL REVIEW LETTERS　92　(22)　223202-1-4　2004/06

    DOI： 10.1103/PhysRevLett.92.223202 　

    ISSN： 0031-9007

    eISSN： 1079-7114

  63. Coulomb hole in N-2, CO and O-2 deduced from X-ray scattering cross-sections Peer-reviewed

    N Watanabe, Y Kamata, K Yamauchi, Y Udagawa, T Muller

    MOLECULAR PHYSICS　102　(7)　649-657　2004/04

    DOI： 10.1080/0026897041001695697 　

    ISSN： 0026-8976

    eISSN： 1362-3028

  64. Absolute surface coverage measurement using a vibrational overtone Peer-reviewed

    ACR Pipino, JPM Hoefnagels, N Watanabe

    JOURNAL OF CHEMICAL PHYSICS　120　(6)　2879-2888　2004/02

    DOI： 10.1063/1.1637338 　

    ISSN： 0021-9606

  65. First steps towards two-electron momentum density measurements Peer-reviewed

    R. W. van Boeyen, N. Watanabe, J. P. Doering, J. H. Moore, M. A. Coplan, J. W. Cooper

    AIP Conference Proceedings　697　88-94　2003

    DOI： 10.1063/1.1643683 　

    ISSN： 0094-243X

  66. Electron correlation effects in N-2 and CO studied by X-ray scattering and CISD calculations Peer-reviewed

    N Watanabe, K Yamauchi, Y Kamata, Y Udagawa, T Muller

    MOLECULAR PHYSICS　100　(17)　2839-2847　2002/09

    DOI： 10.1080/00268970210125359 　

    ISSN： 0026-8976

    eISSN： 1362-3028

  67. Calculation of X-ray scattering intensities by means of the coupled cluster singles and doubles model Peer-reviewed

    N Watanabe, Y Kamata, K Yamauchi, Y Udagawa

    JOURNAL OF COMPUTATIONAL CHEMISTRY　22　(13)　1315-1320　2001/10

    DOI： 10.1002/jcc.1089 　

    ISSN： 0192-8651

  68. Momentum dependence of pi-pi* excitations of benzene rings in condensed phases Peer-reviewed

    H Hayashi, N Watanabe, Y Udagawa, CC Kao

    JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA　114　933-937　2001/03

    DOI： 10.1016/S0368-2048(00)00266-8 　 10.1016/s0368-2048(00)00266-8 　

    ISSN： 0368-2048

  69. Bethe surfaces and X-ray incoherent scattering factor for H2O studied by electron energy loss spectroscopy Peer-reviewed

    M Takahashi, N Watanabe, Y Wada, S Tsuchizawa, T Hirosue, H Hayashi, Y Udagawa

    JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA　112　(1-3)　107-114　2000/11

    DOI： 10.1016/S0368-2048(00)00205-X 　 10.1016/s0368-2048(00)00205-x 　

    ISSN： 0368-2048

  70. The complete optical spectrum of liquid water measured by inelastic x-ray scattering Peer-reviewed

    Hisashi Hayashi, Noboru Watanabe, Yasuo Udagawa, C. C. Kao

    Proceedings of the National Academy of Sciences of the United States of America　97　(12)　6264-6266　2000/06/06

    Publisher: National Academy of Sciences

    DOI： 10.1073/pnas.110572097 　

    ISSN： 0027-8424

  71. Inelastic X-ray scattering study on molecular liquids Peer-reviewed

    N Watanabe, H Hayashi, Y Udagawa

    JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS　61　(3)　407-409　2000/03

    DOI： 10.1016/S0022-3697(99)00326-1 　 10.1016/s0022-3697(99)00326-1 　

    ISSN： 0022-3697

  72. Size-extensive calculations of static structure factors from the coupled cluster singles and doubles model Peer-reviewed

    N Watanabe, S Ten-no, S Pal, S Iwata, Y Udagawa

    JOURNAL OF CHEMICAL PHYSICS　111　(3)　827-832　1999/07

    DOI： 10.1063/1.479369 　

    ISSN： 0021-9606

    eISSN： 1089-7690

  73. Inelastic X-ray scattering in molecular liquids and electron correlation effects Peer-reviewed

    H Hayashi, N Watanabe, Y Udagawa

    JOURNAL OF SYNCHROTRON RADIATION　5　(3)　1052-1054　1998/05

    DOI： 10.1107/s0909049597013575 　

    ISSN： 0909-0495

  74. Static structure factor and electron correlation effects studied by inelastic x-ray scattering spectroscopy Peer-reviewed

    N Watanabe, H Hayashi, Y Udagawa, S Ten-No, S Iwata

    JOURNAL OF CHEMICAL PHYSICS　108　(11)　4545-4553　1998/03

    DOI： 10.1063/1.475865 　

    ISSN： 0021-9606

  75. Optical spectra of liquid water in vacuum uv region by means of inelastic x-ray scattering spectroscopy Peer-reviewed

    H Hayashi, N Watanabe, Y Udagawa, CC Kao

    JOURNAL OF CHEMICAL PHYSICS　108　(3)　823-825　1998/01

    DOI： 10.1063/1.475446 　

    ISSN： 0021-9606

  76. X-ray Raman spectra from low-Z elements Peer-reviewed

    Y Udagawa, N Watanabe, H Hayashi

    JOURNAL DE PHYSIQUE IV　7　(C2)　347-352　1997/04

    DOI： 10.1051/jp4/1997015 　

    ISSN： 1155-4339

  77. Bethe surface of liquid water determined by inelastic X-ray scattering spectroscopy and electron correlation effects Peer-reviewed

    N Watanabe, H Hayashi, Y Udagawa

    BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN　70　(4)　719-726　1997/04

    DOI： 10.1246/bcsj.70.719 　

    ISSN： 0009-2673

    eISSN： 1348-0634

  78. Anisotropy of hexagonal boron nitride core absorption spectra by x-ray Raman spectroscopy Peer-reviewed

    N Watanabe, H Hayashi, Y Udagawa, K Takeshita, H Kawata

    APPLIED PHYSICS LETTERS　69　(10)　1370-1372　1996/09

    DOI： 10.1063/1.117439 　

    ISSN： 0003-6951

  79. Radiative Auger spectra of several K and Ca compounds Peer-reviewed

    H Hayashi, N Watanabe, Y Udagawa

    JOURNAL OF PHYSICS-CONDENSED MATTER　8　(1)　37-46　1996/01

    DOI： 10.1088/0953-8984/8/1/006 　

    ISSN： 0953-8984

Show all ︎Show first 5

Misc. 41

  1. Relation between the spatial shape of excited molecular orbital and molecular-frame electron scattering cross section Peer-reviewed

    N Watanabe, S Yamada, M Takahashi

    Journal of Physics: Conference Series　1412　142017-142017　2020/01

    Publisher: IOP Publishing

    DOI： 10.1088/1742-6596/1412/14/142017 　

    ISSN： 1742-6588

    eISSN： 1742-6596

  2. 解離イオン同時計測電子エネルギー損失分光を用いた分子座標系における電子散乱断面積の測定 Invited Peer-reviewed

    渡邉昇, 高橋正彦

    しょうとつ　16　(1)　4-18　2019/01

    DOI： 10.50847/collision.16.1_4 　

  3. Molecular-frame EELS experiment on inner-valence ionization of N2 Peer-reviewed

    Noboru Watanabe, So Yamada, Masahiko Takahashi

    Journal of Physics: Conference Series　875　(7)　062022-1-1　2017/08/18

    Publisher: Institute of Physics Publishing

    DOI： 10.1088/1742-6596/875/7/062022 　

    ISSN： 1742-6596 1742-6588

  4. Herzberg-Teller vibronic effects on electron-impact excitations of N2O Peer-reviewed

    Noboru Watanabe, Masahiko Takahashi

    Journal of Physics: Conference Series　635　(7)　072032-072032　2015/09/07

    DOI： 10.1088/1742-6596/635/7/072032 　

    ISSN： 1742-6588

  5. Analytical and molecular dynamical investigations of the influence of molecular vibrations upon the (e,2e) electron momentum distributions of furan Peer-reviewed

    F Morini, M S Deleuze, N Watanabe, M Takahashi

    Journal of Physics: Conference Series　635　(7)　072010-072010　2015/09/07

    DOI： 10.1088/1742-6596/635/7/072010 　

    ISSN： 1742-6588

  6. EMS study of vibrational effects on electron momentum distributions of C2H4 and CH2F2 Peer-reviewed

    Noboru Watanabe, Masakazu Yamazaki, Masahiko Takahashi

    Journal of Physics: Conference Series　635　(7)　072031-072031　2015/09/07

    DOI： 10.1088/1742-6596/635/7/072031 　

    ISSN： 1742-6588

  7. Development of a method to measure molecular frame EELS cross sections Peer-reviewed

    N Watanabe, S Yamada, T Hirayama, A Seki, D Suzuki, M Takahashi

    Journal of Physics: Conference Series　635　(7)　072030-072030　2015/09/07

    DOI： 10.1088/1742-6596/635/7/072030 　

    ISSN： 1742-6588

  8. Temperature dependence on VUV-absorption cross sections of CO2 molecule in the energy region of 10.6-11.8 eV Peer-reviewed

    M. Hoshino, M. Matsui, Y. Mochizuki, T. Odagiri, A. Kondo, K. Shigemura, M. Kitajima, N. Watanabe, J. Adachi, P. Limao-Vieira, H. Tanaka

    XXIX INTERNATIONAL CONFERENCE ON PHOTONIC, ELECTRONIC, AND ATOMIC COLLISIONS (ICPEAC2015), PTS 1-12　635　112055-1-1　2015

    DOI： 10.1088/1742-6596/635/11/112055 　

    ISSN： 1742-6588

  9. 9aAT-3 Interference effects on (e,2e) electron momentum profiles of CO_2

    Yamazaki Masakazu, Nakajima Isao, Watanabe Noboru, Takahashi Masahiko

    Meeting abstracts of the Physical Society of Japan　69　(2)　78-78　2014/08/22

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

  10. 「原子衝突のキーワード」振電相互作用 Invited Peer-reviewed

    渡邉昇

    しょうとつ　10　158-158　2013/11

    DOI： 10.50847/collision.10.K011 　

  11. X-ray and Electron Scattering Studies on Electronic Structures and Electronic Excitation Dynamics of Molecules Invited Peer-reviewed

    Noboru Watanabe

    Molecular Science　7　(1)　A0059-18　2013/08

    Publisher: Japan Society for Molecular Science

    DOI： 10.3175/molsci.7.A0059 　 10.3175/molsci.7.a0059 　

    ISSN： 1881-8404

    More details Close

    X-ray and electron scattering experiments are powerful tools for investigating the electronic structures of molecules. The momentum transfer dependence of the scattering cross sections provides valuable information about the shape of molecular orbitals, correlated motion of electrons, vibronic effects on electronic excitations and so on. In this article, recent developments in x-ray and electron scattering studies on electronic structures and electronic excitation dynamics of molecules are reviewed. In particular, we focus on the following three topics. The first topic is an x-ray scattering study on electron correlation. Total (elastic+inelastic) x-ray scattering intensity as well as inelastic scattering intensity are related to electron pair distribution function through Fourier transformation, and hence comparisons between observed and calculated x-ray scattering intensities allow us to make a critical assessment of whether or not electron correlation is properly taken into account in the theoretical wave function. The second topic is interference effects on electron momentum profiles studied using (e, 2e) electron momentum spectroscopy. An analysis of the measured electron momentum densities for the F 2p nonbonding orbitals of CF4 has clearly shown the presence of oscillatory structure having information about the orientation in space of the constituent F 2p atomic orbitals. The third topic is electron energy loss spectroscopy (EELS) studies of vibronic effects on electronic excitations in molecules. Examining the momentum transfer dependence of the EELS cross section makes it possible to see coupling between electronic states. By using this method we have revealed the roles of vibronic coupling in some valence-shell electronic excitations in CF4 and CO2.

  12. Oscillation involved in (e,2e) cross sections of H2 at large momentum transfer Peer-reviewed

    M Yamazaki, H Satoh, N Watanabe, D B Jones, M Takahashi

    Journal of Physics: Conference Series　388　(5)　052033-052033　2012/11/05

    DOI： 10.1088/1742-6596/388/5/052033 　

    ISSN： 1742-6588

  13. Multi-center interference effects on generalized oscillator strengths for the valence-shell electronic excitations of CF4 Peer-reviewed

    Noboru Watanabe, Daisuke Suzuki, Masahiko Takahashi

    Journal of Physics: Conference Series　388　(5)　052051-052051　2012/11/05

    DOI： 10.1088/1742-6596/388/5/052051 　

    ISSN： 1742-6588

  14. 24aAD-1 Interference effects on high-energy-electron-impact ionization processes : momentum density distributions of CF_4 and CCl_4

    Watanabe N., Katabuchi K., Chen X. J., Takahashi M.

    Meeting abstracts of the Physical Society of Japan　67　(1)　177-177　2012/03/05

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

  15. 21pEA-5 Angle-resolved electron energy loss spectroscopy study on valence-shell electronic excitations in CO_2

    Watanabe N., Hirayama H., Suzuki D., Takahashi M.

    Meeting abstracts of the Physical Society of Japan　66　(2)　129-129　2011/08/24

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

  16. 物質内電子運動の可視化法の開発と反応性・機能性の起源の解明

    山崎優一, 渡邉昇, 高橋正彦

    マテリアルインテグレーション　24　(04,05)　123-127　2011/06

  17. 27pRB-1 Multi-center interference effects on the generalized oscillator strengths for valence electronic excitations in CF_4

    Watanabe N., Suzuki D., Takahashi M.

    Meeting abstracts of the Physical Society of Japan　66　(1)　212-212　2011/03/03

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

  18. 26aRH-2 Valence shell electronic excitation of CF_4 studied by angle-resolved electron energy loss spectroscopy

    Watanabe Noboru, Suzuki Daisuke, Takahashi Masahiko

    Meeting abstracts of the Physical Society of Japan　65　(2)　166-166　2010/08/18

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

  19. (e, 2e)電子運動量分光の過去, 現在, そして未来 Invited Peer-reviewed

    山崎優一, 渡邉昇, 高橋正彦

    しょうとつ　7　4-26　2010/03

    DOI： 10.50847/collision.07.R002 　

  20. Bond oscillations observed in (e,2e) electron momentum profiles of CF4 Peer-reviewed

    Noboru Watanabe, Xiangjun Chen, Masahiko Takahashi

    Journal of Physics: Conference Series　194　(5)　052024-1-1　2009/12/24

    Publisher: Institute of Physics Publishing

    DOI： 10.1088/1742-6596/194/5/052024 　

    ISSN： 1742-6596 1742-6588

  21. An (e,3-1e) study on the double ionization of the water molecule Peer-reviewed

    D. B. Jones, N. Watanabe, M. Yamazaki, M. Takahashi

    Journal of Physics: Conference Series　194　(5)　052026-1-1　2009/12/24

    Publisher: Institute of Physics Publishing

    DOI： 10.1088/1742-6596/194/5/052026 　

    ISSN： 1742-6596 1742-6588

  22. Electron-impact ionization-excitation dynamics at large momentum transfer: (e,2e) studies on He and H2 Peer-reviewed

    Noboru Watanabe, Masahiko Takahashi

    Journal of Physics: Conference Series　194　(4)　042051-1-1　2009/12/24

    Publisher: Institute of Physics Publishing

    DOI： 10.1088/1742-6596/194/4/042051 　

    ISSN： 1742-6596 1742-6588

  23. 21aYA-6 (e,2e) study on ionization-excitation process of He

    Watanabe Noboru, Khajuria Y., Takahashi Masahiko, Udagawa Yasuo

    Meeting abstracts of the Physical Society of Japan　60　(2)　73-73　2005/08/19

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

  24. 27pXN-6 Trial of photoelectron photolon coincident velocity-map imaging spectrometer

    Hosaka K., Adachi J., Takahashi M., Watanabe N., Golovin Alexander V., Yagishita A.

    Meeting abstracts of the Physical Society of Japan　59　(1)　156-156　2004/03/03

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

  25. 電子と電子は反発する：Ｘ線非弾性散乱により電子相関を直接観測する。 Invited Peer-reviewed

    渡辺昇

    Chemistry, Chemical Industry　54　132-135　2001/04

  26. Construction of an Electron Energy Loss Spectrometer.

    和田豊, 土沢茂, 広末崇, 渡辺昇, 林久史, 高橋正彦, 宇田川康夫, 佐々木俊明, 相沢勝雄

    東北大学科学計測研究所報告　48　(1)　63-73　1999/04

    ISSN： 0040-8689

  27. Construction of an angle-resolved EELS apparatus.

    和田豊, 土沢茂, 渡辺昇, 林久史, 高橋正彦, 宇田川康夫

    分子構造総合討論会講演要旨集　1999　1999

  28. VUV吸収測定法としての小角X線非弾性散乱法の検討

    林久史, 山内浩太, 渡辺昇, 宇田川康夫, KAO C-C

    分子構造総合討論会講演要旨集　1998　1998

  29. Static Structure factor of molecules studied by means of x-ray inelastic scattering spectroscopy and electron correlation effects

    N. Watanabe, Y. Udagawa

    Photon Factory News　15　(3)　26-28　1997/04

    ISSN： 0916-0604

  30. Application of X-ray inelastic scattering to VUV-soft X-ray spectroscopy.

    林久史, 渡辺昇, 宇田川康夫

    日本分光学会講演要旨集　1997　1997

  31. The static structure factor of molecules.

    渡辺昇, 林久史, 宇田川康夫, 天能精一郎, 岩田末広

    分子構造総合討論会講演要旨集　1997　1997

  32. Small-Angle Inelastic X-ray Scattering of Liquid Water.

    林久史, 渡辺昇, 宇田川康夫, KAO C-C

    分子構造総合討論会講演要旨集　1997　1997

  33. Static and dynamic structure factor of liquid water studied by inelastic X-ray scattering.

    渡辺昇, 林久史, 宇田川康夫

    分子構造総合討論会講演要旨集　1996　1996

  34. Anisotropy of hexagonal boron nitride core excitation spectra by X-ray Raman scattering spectroscopy.

    林久史, 渡辺昇, 宇田川康夫

    分子構造総合討論会講演要旨集　1996　1996

  35. New Application of X-ray Inelastic Scattering Spectroscopy to Studies of Electronic States in Condensed Matter.

    林久史, 渡辺昇, 宇田川康夫

    放射線化学討論会講演要旨集　39th　1996

  36. Observation of the Bethe plane of a fundamental liquid molecule using X-ray inelastic scattering.

    渡辺昇, 林久史, 宇田川康夫, 野村昌治

    日本放射光学会年会予稿集　9th　1996

  37. 凝縮系の非干渉性散乱因子の実験的決定

    渡辺 昇, 林 久史, 宇田川 康夫

    日本結晶学会誌　38　24-24　1996

    Publisher: The Crystallographic Society of Japan

    DOI： 10.5940/jcrsj.38.Supplement_24 　

    ISSN： 0369-4585

  38. Bethe surface of benzene studied by inelastic x-ray scattering.

    渡辺昇, 林久史, 宇田川康夫, 野村昌治

    分子構造総合討論会講演要旨集　1995　1995

  39. Radiative Auger Satellite Spectra of K, Ca, and Ti Compounds.

    林久史, 渡辺昇, 宇田川康夫

    X線分析討論会講演要旨集　31st　1995

  40. X線ラマン散乱およびX線コンプトン-ラマン散乱の測定

    渡辺 昇, 林 久史, 宇田川 康夫

    東北大学科学計測研究所報告　44　(1)　77-93　1995

    Publisher: 東北大学科学計測研究所

    ISSN： 0040-8689

  41. Chemical Effects of TiK.ETA.(Radiative Auger Satellite) X-ray Fluorescence Spectra.

    林久史, 渡辺昇, 宇田川康夫

    X線分析討論会講演要旨集　30th　1994

Show all ︎Show first 5

Books and Other Publications 1

  1. Electron correlation and Coulomb hole deduced from x-ray scattering intensities: experimental and theoretical studies

    N. Watanabe, S. Ten-no, S. Iwata, Y. Udagawa

    Review of Modern Quantum Chemistry, edited by K. D. Sen (World Scientific)　2002/04

    ISBN: 9789810248895

Presentations 121

  1. An (e, e+ion) spectroscopy study on the electron-impact dissociative ionization of SF6

    Noboru Watanabe, Masahiko Takahashi

    Annual Meeting of Japan Society for Molecular Science (2024)　2024/09/18

  2. 角度分解(e, e+ion)分光によるSF6の電子衝撃イオン化解離の研究

    渡邉昇, 髙橋正彦

    原子衝突学会第49回年会　2024/08

  3. Angle-resolved (e, e+ion) spectroscopy: stereodynamics in electron impact ionization of molecules Invited

    Noboru Watanabe

    55th Annual Meeting of the APS Division of Atomic, Molecular and Optical Physics (DAMOP 2024)　2024/06/05

  4. Application of electron-atom Compton scattering to measurements of individual atomic motions in polyatomic molecules Invited

    Satoru Kanaya, Yuuki Onitsuka, Noboru Watanabe, Hirohiko Kono, Masahiko Takahashi

    The International Conference on Many Particle Spectroscopy of Atoms, Molecules, Clusters and Surfaces (MSP2024)　2024/04

  5. Influence of molecular vibration on the valence excitation of CCl4

    Noboru Watanabe, Masahiko Takahashi

    2023/11

  6. Valence excitations in CCl4 and the effects of molecular vibration

    Noboru Watanabe, Masahiko Takahashi

    The 17th Annual Meeting of Japan Society for Molecular Science　2023/09/15

  7. Symmetry breaking in electron-impact dissociative ionization of symmetric molecules Invited

    Noboru Watanabe, Masahiko Takahashi

    22nd International Symposium on Correlation, Polarization and Ionization in Atomic and Molecular Collisions (COPIAMC 2023)　2023/08/04

  8. Symmetry breaking in dissociative ionization of symmetric molecules by electron impact Invited

    Noboru Watanabe, Masahiko Takahashi

    XXXIII International Conference on Photonic, Electronic and Atomic Collisions (ICPEAC 2023)　2023/07/28

  9. Theoretical electronic excitation cross sections of CCl4

    Noboru Watanabe, Masahiko Takahashi

    XXXIII International Conference on Photonic, Electronic and Atomic Collisions (ICPEAC 2023)　2023/07

  10. Development of atomic momentum spectroscopy of polyatomic molecules

    Satoru Kanaya, Yuuki Onitsuka, Noboru Watanabe, Hirohiko Kono, Masahiko Takahashi

    XXXIII International Conference on Photonic, Electronic and Atomic Collisions (ICPEAC 2023)　2023/07

  11. Extension of atomic momentum spectroscopy from diatomic molecules to polyatomic molecules

    Satoru Kanaya, Yuuki Onitsuka, Noboru Watanabe, Hirohiko Kono, Masahiko Takahashi

    38th Symposium on Chemical Kinetics and Dynamics　2023/06

  12. 多原子分子の原子運動量分光の開発

    金谷諭, 鬼塚侑樹, 渡邉昇, 河野裕彦, 髙橋正彦

    第19回原子・電子・光化学（AMO）討論会　2023/06

  13. Experimental and Theoretical Development of Atomic Momentum Spectroscopy for Polyatomic Molecules

    Satoru Kanaya, Yuichi Tachibana, Yuuki Onitsuka, Noboru Watanabe, Hirohiko Kono, Masahiko Takahashi

    The 103rd CSJ annual meeting (2023)　2023/03

  14. Symmetry breaking in electron-induced dissociative ionization of symmetric molecules

    Noboru Watanabe, Masahiko Takahashi

    The 16th Annual Meeting of Japan Society for Molecular Science　2022/09/19

  15. CO2とN2の電子衝撃イオン化解離おける対称性の破れ

    渡邉昇, 髙橋正彦

    原子衝突学会第47回年会　2022/09/08

  16. Development of a theoretical method for predicting the atomic momentum distribution of polyatomic molecules

    Satoru Kanaya, Yuichi Tachibana, Yuuki Onitsuka, Noboru Watanabe, Hirohiko Kono, Masahiko Takahashi

    37th Symposium on Chemical Kinetics and Dynamics　2022/06/01

  17. Symmetry breaking in electron-impact dissociative ionization of CO2 and N2

    Noboru Watanabe, Masahiko Takahashi

    37th Symposium on Chemical Kinetics and Dynamics　2022/06/02

  18. 多原子分子に対する原子運動量分布の量子化学計算法の開発

    金谷諭, 立花佑一, 鬼塚侑樹, 渡邉昇, 髙橋正彦

    日本物理学会第77回年次大会　2022/03/16

  19. Molecular Orientation Dependence of Electron Impact Ionization of CO: Measurement of the Forward-Backward Asymmetry

    Noboru Watanabe, Masahiko Takahashi

    Annual Meeting of Japan Society for Molecular Science (2021）　2021/09/19

  20. Forward-backward asymmetry in electron-impact ionization of CO studied by (e, e+ion) spectroscopy

    Noboru Watanabe, Masahiko Takahashi

    (virtual) International Symposium on Correlation, Polarization and Ionization in Atomic and Molecular Collisions (vCOPIAMC)　2021/07/28

  21. Measurement of the forward-backward asymmetry in electron impact ionization of CO

    Noboru Watanabe, Masahiko Takahashi

    The 32nd International Conference on Photonic, Electronic and Atomic Collisions (ViCPEAC 2021)　2021/07/21

  22. 電子散乱分光で探る分子内電子挙動 Invited

    渡邉昇

    第7回森野ディスカッション　2020/08/31

  23. Effects of vibrational excitation on the electron momentum distributions of dimethyl ether

    Keita Takahashi, Kimihiro Sato, Noboru Watanabe, Masahiko Takahashi

    2019/12

  24. Vibrational effects on the electron momentum distributions of dimethyl ether at high temperatures International-presentation

    Keita Takahashi, Kimihiro Sato, Noboru Watanabe, Masahiko Takahashi

    The 2nd edition of the International Symposium of CEFMS-NCTU, RCAS-AS (Taiwan) and 5-star Alliance (Japan)　2019/11

  25. Electron scattering spectroscopy study of vibronic effects on the valence excitations in SF6

    Noboru Watanabe, Tsukasa Hirayama, Masahiko Takahashi

    Annual Meeting of Japan Society for Molecular Science (2019)　2019/09

  26. Dynamical investigation of the electron momentum distributions of adamantane International-presentation

    Filippo Morini, Noboru Watanabe, Masataka Kojima, Michael Simon Deleuze, Masahiko Takahashi

    International symposium on correlation, polarization and ionization in atomic and molecular collisions　2019/08

  27. Relation between the spatial shape of excited molecular orbital and molecular-frame electron scattering cross section International-presentation

    Noboru Watanabe, So Yamada, Masahiko Takahashi

    XXXI International conference on photonic, electronic, and atomic collisions　2019/07

  28. (e, e+ion) study on electron-induced dissociative ionization of O2 International-presentation

    Noboru Watanabe, So Yamada, Masahiko Takahashi

    13th Asian International Seminar on Atomic and Molecular Physics　2018/12

  29. 高温分子線源を用いた振動励起分子の電子運動量分光

    佐藤公洋, 渡邉昇, 高橋正彦

    第18回東北大学多元物質科学研究所研究発表会　2018/12

  30. Stereodynamics in electron-impact ionization of diatomic molecules studied by electron-ion coincidence spectroscopy International-presentation Invited

    Noboru Watanabe, Masahiko Takahashi

    International Workshop on Atomic and Molecular Collisions　2018/12

  31. Stereodynamics in electron-impact ionization of diatomic molecules studied by (e, e+ion) spectroscopy International-presentation Invited

    Noboru Watanabe, Masahiko Takahashi

    13th Asian International Seminar on Atomic and Molecular Physics　2018/12

  32. ホルムアミドの電子運動量分光： 大振幅振動の分子軌道形状への影響と高温実験への展開

    佐藤公洋, 渡邉昇, 高橋正彦

    第12回分子科学討論会　2018/09

  33. 解離イオン同時計測EELSを用いたO2のinner-valenceイオン化の研究

    渡邉昇, 山田聡, 高橋正彦

    第12回分子科学討論会　2018/09

  34. Stereodynamics in electron-impact ionization of molecules studied by molecular-frame electron energy loss spectroscopy International-presentation Invited

    N. Watanabe, M. Takahashi

    The International Conference on Many Particle Spectroscopy of Atoms, Molecules, Clusters and Surfaces　2018/08

  35. Electron-ion coincidence study on electron-induced dissociative ionization of O2 International-presentation

    Noboru Watanabe, So Yamada, Masahiko Takahashi

    34th Symposium on Chemical Kinetics and Dynamics　2018/06

  36. 蟻酸メチルの電子運動量分布に対する分子振動の影響

    佐藤公洋, 渡邉昇, 山﨑優一, 高橋正彦

    第11回分子科学討論会　2017/09

  37. 分子座標系におけるN2の電子非弾性散乱断面積の測定

    渡邉昇, 山田聡, 高橋正彦

    第11回分子科学討論会　2017/09

  38. 希ガス原子の電子運動量分光：平面波撃力近似の適用範囲の探索(II)

    中島功雄, 山崎優一, 渡邉昇, 高橋正彦

    第11回分子科学討論会　2017/09

  39. Relationship between interference pattern and molecular orbital shape: an electron momentum spectroscopy study on SF6 International-presentation

    Noboru Watanabe, Masakazu Yamazaki, Masahiko Takahashi

    International Symposium on (e,2e), Double Photo-ionization, and Related Topics 2017　2017/08

  40. Inner-valence ionization of N2 studied by molecular-frame EELS experiments International-presentation

    Noboru Watanabe, So Yamada, Masahiko Takahashi

    International Symposium on (e,2e), Double Photo-ionization, and Related Topics 2017　2017/08

  41. A binary (e, 2e) spectroscopy study for elucidating the range of the validity of the plane wave impulse approximation International-presentation

    Isao Nakajima, Masakazu Yamazaki, Noboru Watanabe, Masahiko Takahashi

    International Symposium on (e,2e), Double Photo-ionization, and Related Topics 2017　2017/08

  42. Relationship between interference pattern and molecular orbital shape: a binary (e, 2e) study on SF6 International-presentation

    Noboru Watanabe, Masakazu Yamazaki, Masahiko Takahashi

    XXX International Conference on Photonic, Electronic and Atomic Collisions,　2017/07

  43. Molecular-frame EELS experiment on inner-valence ionization of N2 International-presentation

    Noboru Watanabe, So Yamada, Masahiko Takahashi

    XXX International Conference on Photonic, Electronic and Atomic Collisions　2017/07

  44. An electron momentum spectroscopy study for elucidating the range of the validity of the plane wave impulse approximation International-presentation

    Isao Nakajima, Masakazu Yamazaki, Noboru Yamazaki, Masahiko Takahashi

    XXX International Conference on Photonic, Electronic and Atomic Collisions　2017/07

  45. Molecular-frame EELS experiment on electron-impact ionization of N2 International-presentation

    Noboru Watanabe, So Yamada, Masahiko Takahashi

    33rd Symposium on Chemical Kinetics and Dynamics　2017/06

  46. An electron momentum spectroscopy study for finding the range of the validity of the plane wave impulse approximation (I) International-presentation

    Isao Nakajima, Masakazu Yamazaki, Noboru Watanabe, Masahiko Takahashi

    33rd Symposium on Chemical Kinetics and Dynamics　2017/06

  47. Angle-resolved EELS studies on vibronic coupling effects and electron-impact induced ionization dynamics International-presentation Invited

    N. Watanabe, M. Takahashi

    3rd Computational Chemistry Symposium (The main symposium of 13th international conference of computational methods in science and engineering)　2017/04

  48. 解離イオン同時計測EELSを用いたN2のinner valenceイオン化の研究

    渡邉昇, 山田聡, 高橋正彦

    原子衝突学会第41回年会　2016/12

  49. CO2、エチレン及びブタジエンのπ軌道の電子運動量分布の比較研究

    中島功雄, 山崎優一, 渡邉昇, 高橋正彦

    第10回分子科学討論会　2016/09

  50. 解離イオン同時計測EELSを用いた二原子分子のinner valenceイオン化の研究

    渡邉昇, 山田聡, 高橋正彦

    第10回分子科学討論会　2016/09

  51. Vibrational effects on electron momentum distributions of dimethyl ether International-presentation

    M. Kojima, N. Watanabe, F. Morini, M. S. Deleuze, M. Takahashi

    12th Asian International Seminar on Atomic and Molecular Physics (AISAMP12)　2016/09

  52. A comparative study on electron momentum profiles of the π orbitals of CO2, ethylene and 1,3-butadiene International-presentation

    I. Nakajima, M. Yamazaki, N. Watanabe, M. Takahashi

    12th Asian International Seminar on Atomic and Molecular Physics (AISAMP12)　2016/09

  53. Electron-impact induced inner-valence ionization of N2 and O2 studied by electron-ion coincidence spectroscopy International-presentation

    N. Watanabe, S. Yamada, M. Takahashi

    32nd Symposium on Chemical Kinetics and Dynamics　2016/06

  54. 解離イオン同時計測EELS実験による二原子分子の価電子イオン化の研究

    山田聡, 渡邉昇, 平山司, 高橋正彦

    第15回東北大学多元物質科学研究所研究発表会　2015/12/22

  55. Two-center interference effects in (e, 2e) ionization of H2 and CO2 at large momentum transfer International-presentation

    M. Yamazaki, I. Nakajima, H. Satoh, N. Watanabe, D. Jones, M. Takahashi

    68th Gaseous Electronics Conference　2015/10

  56. 解離イオン同時計測EELS実験によるN2とO2の価電子イオン化の研究

    山田聡, 渡邉昇, 平山司, 高橋正彦

    第9回分子科学討論会　2015/09

  57. SF6の電子運動量分布における干渉効果の研究

    渡邉昇, 山崎優一, 高橋正彦

    第9回分子科学討論会　2015/09

  58. 解離イオン同時計測EELS装置を用いたN2とO2の価電子イオン化の研究

    山田聡, 渡邉昇, 平山司, 高橋正彦

    原子衝突学会第40回年回　2015/09

  59. SF6の電子運動量分布に現れる多中心干渉効果の研究

    渡邉昇, 山崎優一, 高橋正彦

    原子衝突学会第40回年回　2015/09

  60. エチレンの電子運動量分布におけるbond oscillationの観測

    中島功雄, 山崎優一, 渡邉昇, 高橋正彦

    原子衝突学会第40回年回　2015/09

  61. Temperature dependence on VUV-absorption cross sections of CO2 molecule in the energy region of 10.6 – 11.8 eV International-presentation

    M. Hoshino, M. Matsui, Y. Mochizuki, T. Odagiri, A. Kondo, K. Shigemura, M. Kitajima, N. Watanabe, J. Adachi, P. Limão-Vieira, H. Tanaka

    XXIX International Conference on Photonic, Electronic and Atomic Collisions　2015/07

  62. Analytical and molecular dynamical investigations of the influence of molecular vibrations upon the (e,2e) electron momentum distributions of furan International-presentation

    F. Morini, M. S. Deleuze, N. Watanabe, M. Takahashi

    XXIX International Conference on Photonic, Electronic and Atomic Collisions　2015/07

  63. Herzberg-Teller vibronic effects on electron-impact excitations of N2O International-presentation

    N. Watanabe, M. Takahashi

    XXIX International Conference on Photonic, Electronic and Atomic Collisions　2015/07

  64. EMS study of vibrational effects on electron momentum distributions of C2H4 and CH2F2 International-presentation

    N. Watanabe, M. Yamazaki, M. Takahashi

    XXIX International Conference on Photonic, Electronic and Atomic Collisions　2015/07

  65. Development of a method to measure molecular frame EELS cross sections International-presentation

    N. Watanabe, S. Yamada, T. Hirayama, A. Seki, D. Suzuki, M. Takahashi

    XXIX International Conference on Photonic, Electronic and Atomic Collisions　2015/07

  66. Development of an electron-ion coincidence spectrometer to examine EELS cross sections in molecular frame International-presentation

    N. Watanabe, S. Yamada, T. Hirayama, D. Suzuki, M. Takahashi

    31st Symposium on Chemical Kinetics and Dynamics　2015/06

  67. 加熱されたCO2分子のVUV吸収断面積測定II

    星野正光, 松井翠, 望月有, 小田切丈, 重村圭亮, 近藤篤史, 北島昌史, 渡邉昇, 足立純一, 田中大

    日本物理学会第70回年次大会　2015/03

  68. CO2の電子運動量分布におけるbond oscillationの観測

    中島功雄, 山崎優一, 渡邉昇, 高橋正彦

    第14回東北大学多元物質科学研究所研究発表会　2014/12/05

  69. Vibronic effects on high-energy electron impact excitations of N2O

    N. Watanabe, M. Takahashi

    11th Asian International Seminar on Atomic and Molecular Physics　2014/10

  70. Vibronic effects on high-energy electron impact excitations of CO2

    N. Watanabe, T. Hirayama, D. Suzuki, M. Takahashi

    11th Asian International Seminar on Atomic and Molecular Physics　2014/10

  71. Development of a method to observe EELS cross sections in molecular frame

    S. Yamada, N. Watanabe, T. Hirayama, A. Seki, D. Suzuki, M. Takahashi

    11th Asian International Seminar on Atomic and Molecular Physics　2014/10

  72. An electron momentum spectroscopy study on the highest occupied molecular orbital of CO2

    I. Nakajima, M. Yamazaki, N. Watanabe, M. Takahashi

    11th Asian International Seminar on Atomic and Molecular Physics　2014/10

  73. Interference effects in electron momentum profile of the highest occupied molecular orbital of CO2

    I. Nakajima, M. Yamazaki, N, Watanabe、M. Takahashi

    2014/10

  74. EMS study of vibrational effects on electron momentum distributions of CH2F2

    N. Watanabe, M, Yamazaki、M. Takahashi

    2014/10

  75. Development of a molecular-frame EELS spectrometer

    S. Yamada, N, Watanabe、T. Hirayama、A. Seki, D. Suzuki, M. Takahashi

    2014/10

  76. Two-center interference effects in (e, 2e) cross sections of H2 at large momentum transfer

    M. Yamazaki, H. Satoh, N, Watanabe、D, B. Jones, M. Takahashi

    2014/10

  77. 分子座標系における電子散乱断面積測定法の開発： 解離イオン同時計測EELS

    渡邉昇, 山田聡, 平山司, 関淳志, 鈴木大介, 高橋正彦

    第8回分子科学討論会　2014/09

  78. CO2のHOMO軌道の電子運動量分布における干渉効果

    中島功雄, 山崎優一, 渡邉昇, 高橋正彦

    第8回分子科学討論会　2014/09

  79. 加熱されたCO2分子のVUV吸収断面積測定

    星野正光, 松井翠, 望月有, 小田切丈, 重村圭亮, 近藤篤史, 北島昌史, 渡邉昇, 足立純一, 田中大

    日本物理学会2014年秋季大会　2014/09

  80. CO2の電子運動量分布における干渉効果の研究

    山崎優一, 中島功雄, 渡邉昇, 高橋正彦

    日本物理学会2014年秋季大会　2014/09

  81. Vibrational effects on electron momentum distributions of CH2F2

    N. Watanabe, M. Yamazaki, M. Takahashi

    30th Symposium on Chemical Kinetics and Dynamics　2014/06

  82. Vibrational effects on electronic transitions in molecules studied by high-energy electron scattering experiments International-presentation Invited

    N. Watanabe, M. Takahashi

    18th Malaysian International Chemical Congress　2014/03

  83. N2Oの価電子励起における振電相互作用効果：GOSの理論計算

    渡邉昇, 高橋正彦

    原子衝突研究協会第38回年会　2013/11

  84. Vibronic effects on electronic excitations in CO2 induced by electron impact

    N. Watanabe, T. Hirayama, D. Suzuki, M. Takahashi

    International Symposium for the 70th Anniversary of the Tohoku Branch of the Chemical Society of Japan　2013/09

  85. X線および電子線散乱を用いた分子内電子運動と電子励起ダイナミクスの研究 Invited

    渡邉 昇

    第7回分子科学討論会　2013/09

  86. Vibronic effects on electron impact excitations of CO2 studied by angle-resolved EELS

    N. Watanabe, T. Hirayama, D. Suzuki, M. Takahashi

    International Symposium on (e,2e), Double Photo-ionization and Related Topics & 17th International Symposium on Polarization and Correlation in Electronic and Atomic Collisions　2013/08

  87. Vibrational effects on electronic transitions in molecules studied by (e,2e) electron momentum spectroscopy and EELS International-presentation Invited

    N. Watanabe, M. Takahashi

    International Symposium on (e,2e), Double Photo-ionization and Related Topics & 17th International Symposium on Polarization and Correlation in Electronic and Atomic Collisions　2013/08

  88. Vibronic effects on electron impact excitations of CO2

    N. Watanabe, T. Hirayama, D. Suzuki, M. Takahashi

    The XVII International Workshop on Low-Energy Positron and Positronium Physics　2013/07

  89. Vibronic effects on the electronic excitations of CO2 induced by electron impact

    N. Watanabe, T. Hirayama, D. Suzuki, M. Takahashi

    29th Symposium on Chemical Kinetics and Dynamics　2013/06

  90. Vibronic effects on electron momentum distributions of ethylene

    N. Watanabe, M. Yamazaki, M. Takahashi

    29th Symposium on Chemical Kinetics and Dynamics　2013/06

  91. Angle-resolved EELS study of vibronic effects on valence-shell electronic excitations in molecules International-presentation Invited

    N. Watanabe, T. Hirayama, D. Suzuki, M. Takahashi

    10th Asian International Seminar on Atomic and Molecular Physics　2012/10

  92. 電子エネルギー損失分光を用いたCO2の価電子励起の研究：振電相互作用効果

    平山司, 渡邉昇, 鈴木大介, 高橋正彦

    第6回分子科学討論会　2012/09

  93. エチレンの電子運動量分布に対する分子振動の影響

    渡邉昇, 山崎優一, 高橋正彦

    第6回分子科学討論会　2012/09

  94. 超高感度電子運動量分光を用いたHeの励起イオン化過程の研究

    川瀬裕也, 山崎優一, 渡邉昇, 高橋正彦

    原子衝突学会第37回年会　2012/07

  95. 角度分解型EELSを用いたCO2の価電子励起の研究：振電相互作用効果

    渡邉昇, 平山司, 鈴木大介, 高橋正彦

    原子衝突学会第37回年会　2012/07

  96. Vibronic effects on the valence-shell electronic excitations in CF4 and CO2 induced by electron impact

    N. Watanabe, T. Hirayama, D. Suzuki, M. Takahashi

    28th Symposium on Chemical Kinetics and Dynamics　2012/06

  97. 高速電子衝撃イオン化における多中心干渉効果：CF4とCCl4の電子運動量分布

    渡邉昇, 片渕啓介, Xiangjun Chen, 高橋正彦

    日本物理学会第67回年次大会　2012/03

  98. 角度分解型EELSによるCO2の振電相互作用の研究

    平山司, 鈴木大介, 渡邉昇, 高橋正彦

    第11回東北大学多元物質科学研究所研究発表会　2011/12/08

  99. 角度分解型EELS を用いたCO2 の価電子励起の研究

    渡邉昇, 平山司, 鈴木大介, 高橋正彦

    日本物理学会2011年秋季大会　2011/09

  100. H2の電子運動量分布の精密観測：核間距離を反映した干渉効果

    山﨑優一, 佐藤弘典, 渡邉昇, D. B. Jones, 高橋正彦

    第5回分子科学討論会　2011/09

  101. 電子エネルギー損失分光によるCF4の価電子励起の研究：振電相互作用効果

    鈴木大介, 渡邉昇, 高橋正彦

    第5回分子科学討論会　2011/09

  102. EELSを用いたCO2の価電子励起状態の研究

    平山司, 鈴木大介, 渡邉昇, 高橋正彦

    平成23年度化学系学協会東北大会　2011/09

  103. 電子衝撃によるCF4の価電子励起における分子振動の影響

    鈴木大介, 渡邉昇, 高橋正彦

    平成23年度化学系学協会東北大会　2011/09

  104. 高速電子衝撃実験で探る分子の電子状態 Invited

    渡邉昇, 山崎優一, 高橋正彦

    平成23年度 化学系学協会東北大会 物理化学コロキウム　2011/09

  105. Angle-resolved electron energy loss spectroscopy study on the valence-shell electronic excitations of molecules International-presentation Invited

    Noboru Watanabe

    14th Asian Chemical Congress 2011　2011/09

  106. 水素分子の電子運動量分布に現れる干渉効果の研究

    山﨑優一, 佐藤弘典, 渡邉昇, D. B. Jones, 高橋正彦

    原子衝突研究協会第36回年会　2011/08

  107. 四フッ化炭素の一般化振動子強度分布に現れる干渉効果の研究

    渡邉昇, 鈴木大介, 高橋正彦

    原子衝突研究協会第36回年会　2011/08

  108. Bond oscillation observed in (e,2e) cross sections of H2 at large momentum transfer

    M. Yamazaki, H. Satoh, N. Watanabe, D. B. Jones, M. Takahashi

    International Symposium on (e,2e), Double Photoionization and Related Topics　2011/08

  109. Multi-center interference effects on valence-shell electronic excitations of CF4 induced by electron impact

    N. Watanabe, D. Suzuki, M. Takahashi

    International Symposium on (e,2e), Double Photoionization and Related Topics　2011/08

  110. Binary (e,2e) study of multi-center interference effects on electron momentum densities of CF4 and CCl4 International-presentation Invited

    N. Watanabe, M. Takahashi

    International Symposium on (e,2e), Double Photoionization and Related Topics　2011/08

  111. Oscillation involved in (e,2e) cross sections of H2 at large momentum transfer

    M. Yamazaki, H. Satoh, N. Watanabe, D. B. Jones, M. Takahashi

    XXVII International Conference on Photonic, Electronic, and Atomic Collisions　2011/07

  112. Multi-center interference effects on generalized oscillator strengths for the valence-shell electronic excitations of CF4

    N. Watanabe, D. Suzuki, M. Takahashi

    XXVII International Conference on Photonic, Electronic, and Atomic Collisions　2011/07

  113. EMS study on the satellite transitions of the neon and argon valence shells International-presentation Invited

    N. Watanabe, M. Takahashi

    International Workshop on Frontiers of Electron Momentum Spectroscopy 2010　2010/09

  114. Experimental and Theoretical (e,2e) Studies on He and H2 International-presentation Invited

    N. Watanabe, M. Takahashi

    XXVI International Conference on Photonic, Electronic, and Atomic Collisions　2009/07

  115. (e,2e) and (e,3-1e) studies on double processes of He at large momentum transfer International-presentation Invited

    N. Watanabe, Y. Khajuria, M. Takahashi, Y. Udagawa, P. Vinitsky, Yu. V. Popov, O. Chuluunbaatar, K. Kouzakov

    International Symposium on (e,2e), Double Photoionization and Related Topics　2005/07

  116. 電子運動量分光法を用いたNeのサテライト状態の研究

    Yugal Khajuria, 高橋 正彦, 宇田川 康夫

    原子衝突研究会第２９回研究会　2004/08/04

  117. 電子運動量分光によるNeのサテライト状態の研究

    Yugal Khajuria, 高橋正彦, 宇田川康夫

    第20回化学反応討論会　2004/06/23

  118. Development of an electron-electron-fragment ion triple coincidence spectrometer for molecular frame (e,2e) experiment International-presentation Invited

    N. Watanabe

    8th East Asian workshop on Chemical Reactions　2004/03/08

  119. Second Born Approximation Calculation of Double Ionization of Mg International-presentation

    J. W. Cooper, J, H. Moore

    Symposium on (e,2e), Double Photoionization and Related Topics and the 12th International Symposium on Polarization and Correlation in Electronic and Atomic Collision　2003/08

  120. 配向分子の電子運動量分光装置の試作

    高橋正彦, 宇田川康夫

    原子衝突協会第28回研究会　2003/08

  121. Coupled Cluster法を用いたＸ線散乱強度の計算

    宇田川康夫

    理論化学討論会　2003/05/13

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Research Projects 21

  1. Electronic motion in molecules under resonant excitation conditions

    Noboru Watanabe

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (B)

    Category: Grant-in-Aid for Scientific Research (B)

    Institution: Tohoku University

    2021/04 - 2025/03

  2. Development of a novel method for investigating radical species produced by electron-molecule collisions Competitive

    Noboru Watanabe

    Offer Organization: JSPS

    System: KAKENHI

    2019/06 - 2022/03

  3. フリーラジカルの分子軌道イメージング Competitive

    渡邉 昇

    Offer Organization: 日本学術振興会

    System: 科学研究費補助金 基盤研究(B)

    2018/04 - 2022/03

  4. 電子波動関数の核配置依存性に基づくアプローチによる振電相互作用効果の研究 Competitive

    渡邉 昇

    Offer Organization: 日本学術振興会

    System: 科学研究費補助金 基盤研究(B)

    2015/04 - 2019/03

  5. Development of laser-assisted electron momentum spectroscopy for understanding interaction between strong laser filed and matter

    TAKAHASHI MASAHIKO, WATANABE NOBORU, YAMAZAKI MASAKAZU, ZHU CHAOYUAN, KOUZAKOV KONSTANTIN

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Challenging Exploratory Research

    Institution: Tohoku University

    2015/04/01 - 2018/03/31

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    Through resent advances in laser technology, it has become feasible to create strong laser field, which is comparable with the electric field that a bound electron feels in matter, and various kinds of researches regarding ultrafast molecular dynamic in such strong laser field has been activated. The objective of this project is to develop laser-assisted electron momentum spectroscopy that is expected to provide more complete understanding of interaction between strong laser filed and matter. For this purpose, many theoretical calculations as well as development of several experimental techniques have been attempted. As a result, this project has successfully provided concrete experimental conditions and guidelines for improvements in experimental techniques, required to realize laser-assisted electron momentum spectroscopy in the near future.

  6. Stereodynamics of electron-molecule collisions studied by using momentum transfer dependence

    TAKAHASHI Masahiko, WATANABE NOBORU, YAMAZAKI MASAKAZU, ZHU CHAOYUAN, DELEUZE MICHAEL, KOUZAKOV KONSTANTIN, JONES DARRYL

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (A)

    Institution: Tohoku University

    2013/04/01 - 2017/03/31

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    One might expect that when an electron collides with a molecule, the probability of occurring a collision and the physical content of the collision must be largely dependent upon the angle between the incident electron beam axis and the molecular axis as well as upon the impact parameter. The objective of this project has been to open up a new research area to investigate such stereodynamics of electron-molecule collision. For this purpose, a new experimental technique, which measures the differential cross section of electron scattering as a function of spatial orientation of the target molecule and momentum transfer, has been developed. As a result, this project has successfully and for the first time found effects of stereodynamics on the cross section, which is much more substantial than supposed.

  7. 電子非弾性散乱における干渉現象を利用した電子波動関数の位相プローブ法の開発 Competitive

    渡邉 昇

    Offer Organization: 日本学術振興会

    System: 科学研究費補助金 挑戦的萌芽研究

    2013/04 - 2016/03

  8. 解離イオン同時計測電子エネルギー損失分光による空電子軌道イメージング Competitive

    渡邉 昇

    Offer Organization: 日本学術振興会

    System: 科学研究費補助金 基盤研究(C)

    2010/04 - 2013/03

  9. 電子エネルギー損失分光を用いた高温条件下における分子の電子励起過程の研究 Competitive

    渡邉 昇

    Offer Organization: 住友財団

    System: 基礎科学研究助成

    2012 - 2013

  10. Visualization of electron transfer in matter with a time-resolved Reaction microscope for electron Compton scattering

    TAKAHASHI Masahiko, WATANABE Noboru, YAMAZAKI Masakazu, YURI Popov, KONSTANTION Kouzakov, OTTMAR Jagutzki

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (S)

    Institution: Tohoku University

    2008 - 2012

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    The aim of this project is to develop time-resolved electron momentum spectroscopy. It is a unique means that allows one to see the change of electron motion in transient species, which is the driving force behind any chemical reactions. While there remains an ample room for improving experimental qualities, we have successfully made the first observation of the change of electron motion during chemical reactions, such as the three-body photodissociation dynamics of the acetone molecule at 195 nm.

  11. X線及び電子線散乱を用いた電子相関と多電子励起ダイナミクスの研究 Competitive

    渡邉 昇

    Offer Organization: 分子科学研究奨励森野基金

    System: 研究助成

    2009 - 2010

  12. 配向分子の電子エネルギー損失分光による励起分子の電子状態の研究 Competitive

    渡邉 昇

    Offer Organization: 山田科学振興財団

    System: 研究援助

    2009 - 2009

  13. 電子衝撃二重イオン化を用いた電子相関の研究 Competitive

    渡邉 昇

    Offer Organization: 日本学術振興会

    System: 科学研究費補助金 若手研究(B)

    2004/04 - 2007/03

  14. Development of a method for imaging molecular orbital pattern and foundation of momentum spectroscopy

    TAKAHASHI Masahiko, WATANABE Noboru

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (A)

    Institution: Tohoku University

    2004 - 2007

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    Various kinds of molecular properties such as reactivity are governed by molecular orbital pattern of a specific valence electron. The purpose of this project is to develop a method for imaging such molecular orbital pattern in momentum space. In order to realize this project, we have constructed an apparatus that aims to detect in triple coincidence the two outgoing electrons and the fragment ion produced by electron Compton scattering and to measure vector correlations among the three charged particles. The apparatus has been subsequently employed for dissociative ionization processes of the H_2 and O_2 molecules. Although the experimental results suffer from rather large statistical uncertainties, they are found to fulfill our expectations. For instance, the 2_<Sδ_g> electron orbital of the H_2 molecule has been observed in momentum space as what is elongated in the direction perpendicular to the molecular axis, which is well known to be stretched along the molecular axis in position space. This observation is due entirely to nature of Fourier transform. On the other hand, for the 2_<Pδ_u> orbital of the molecule, the p-type orbital nature, which lobes and a nodal plane lie in the direction parallel and perpendicular to the molecular axis respectively, has been clearly observed. In this way, we have successfully demonstrated for the first time that looking at molecular orbitals in the three dimensional form is totally possible. The achievements of this project has been highly evaluated as pioneering work for molecular orbital imaging, opening the door for detailed studies on bound electronic wave functions of molecules. This work has been invited to a broad range of international and domestic conferences (40 invited talks) and The Chemical Society of Japan (CSJ) Award for Creative Work has been provided to the head investigator in 2008 March.

  15. コンプトン散乱の衝突立体ダイナミクス

    高橋 正彦, 渡辺 昇

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業

    Category: 萌芽研究

    Institution: 東北大学

    2004 - 2006

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    コンプトン効果と光電効果は、光子のみならず電子や多価イオンといった種々のprojectileと物質との相互作用の理解に極めて重要な役割を担う。このうち、光電効果の衝突ダイナミクスは(光電子・解離イオン)同時計測実験などにより光の電気ベクトルのみならず分子軸方向をもパラメータとする詳細な研究が活発に進められてきている。一方、光電効果と物理的性質が大きく異なるコンプトン効果の物理の理解は、電子線コンプトン散乱の動力学的完全実験であるbinary(e,2e)分光が活発に行なわれてきてはいるものの、標的とする気相分子の空間的ランダム配向により、得られる情報は分子座標系での(e,2e)断面積を空間平均したものに限定される。 本研究では、コンプトン散乱の衝突立体ダイナミクスのより詳細な理解を目的として、レーザー電子励起により空間的に配向した分子を生成し、これを標的とした分子座標系でのbinary(e,2e)分光の開発を行うことを目的とした。 この目的に向けて、平成17年度には最大64個の高速信号を並列処理する多重同時計測電子回路の開発を行い、平成16年度に行った全方位角2π型球型アナライザー及び電子検出用hexagonal-delay-line型二次元検出器の開発の成果を踏まえて、本研究に必要な実験設備をシステムとして完成した。平成18年度には本システムを、レーザー電子励起の代わりに解離イオンの反跳方向を測定する(非弾性散乱電子・電離電子・解離イオン)三重同時計測実験に転用することにより、目的とする分子座標系でのbinary(e,2e)分光実験に世界に先駆けて成功し、コンプトン散乱の衝突立体ダイナミクスという新しい研究分野を創始した。

  16. A development of site-selective, valence-selective, and spin-selective XAFS spectroscopy by inelastic x-ray scattering

    UDAGAWA Yasuo, HAYASHI Hisashi, WATANABE Noboru, NANAO Susumu, WATANABE Yasuhiro, KAWAMURA Naomi

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (A)

    Institution: Tohoku University

    2003 - 2005

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    Thanks to the present grant, we have constructed a high-sensitive x-ray spectrometer, developed a method to obtain lifetime-broadening-free XANES spectra, and carried out the following spectroscopic studies. 1. Construction of an x-ray spectrometer equipped with a two-dimensional detector and five dispersing analyzer crystal. 2. We have succeeded in obtaining weak XANES spectra excited under pre-resonantt conditions owing to the high-sensitive spectrometer described above. Subsequently, we have shown that lifetime-broadening-free XANES spectra can be obtained by numerically analyzing those spectra by an equation based on Kramers-Heisenberg equation. 3. Based on 1 and 2, we have carried out the following studies. (1) Observation of spin-selective XANES spectra of MnO and other manganese compounds. (2) Studies on orbital- and spin-ordering of LaMnO3 by spin-selective, polarization XANES spectra. (3) Observation of 2p-4f quadrupole transitions of Dy and Ho compounds. (4) Valence-selective XANES study of mixed valence (Ge^<3+>(Ge^+Cl^-_4)) compound GeCl_2.

  17. 気体X線散乱実験を用いたクーロン孔の直接観測 Competitive

    渡邉 昇

    Offer Organization: 日本学術振興会

    System: 科学研究費補助金 若手研究(B)

    2002/04 - 2004/03

  18. Electron momentum spectroscopy with fixed-in-space molecules

    TAKAHASHI Masahiko, WATANABE Noboru

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (B)

    2001 - 2003

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    Through the last three decades of studies of binary (e,2e) spectroscopy or electron momentum spectroscopy (EMS), it has been demonstrated that the ionization reaction near the Bethe ridge is a sensitive probe for electronic structure and electron correlation. In particular, the ability to look at individual molecular orbitals in momentum space is the remarkable feature of this technique. However, EMS has not yet reached the stage of full use of its ability for intensive investigation on electronic structure of molecules. The reason for this may have been twofold; (1) a more complete knowledge of the binary (e,2e) reaction mechanism is an ever-increasing necessity as sophistication of experiments increases, and (2) the present EMS experiments measure averages over all orientations of gaseous molecules, resulting in enormous loss of information on electronic structure, anisotropy of the target wavefunction in particular. However, small cross section involved in the binary (e,2e) reaction has hindered one from developing EMS satisfactorily. Under these circumstances, we have constructed an electron-electron-fragment ion triple coincidence spectrometer. The spectrometer features remarkably high sensitivity for the two outgoing electrons by simultaneous detection in energy and momentum, and further it enables us to carry out (e,2e) experiments with fixed-in-space molecules based on their axial recoil fragmentation. By taking advantage of multichannel detection in. the spectrometer, we have successfully applied it to studies on collision dynamics of ionization excitation processes of the hydrogen molecule and directional momentum densities of the oxygen molecule. These are the first observation of molecular frame (e,2e) cross sections.

  19. 気体Ｘ線散乱法を用いた電子相関の研究 Competitive

    渡邉 昇

    Offer Organization: 日本学術振興会

    System: 科学研究費補助金 奨励研究(A)

    2000/04 - 2001/03

  20. X-ray inelastic scattering and radiation chemistry

    UDAGAWA Yasuo, WATANABE Noboru

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (C)

    Institution: Tohoku University

    1999 - 2000

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    In the fiscal year 2000, we have written up the following three papers, the results of which have been obtained in the experiments carried out in the past year. The first one has already been printed, and the others are presently in press. (1) Complete optical spectrum of liquid water H.Hayashi, N.Watanabe, Y.Udagawa, and C.-C.Kao Proc.Natl.Acad.Sci. 97, 6264-6266(2000). (2) Momentum dependence of π-π^* excitations of benzene rings in condensed phases Hisashi Hayashi, Noboru Watanabe, Yasuo Udagawa, and Chi-Chang Kao J Electron Spectrosc. in press. (3) Chemical Applications of Inelastic X-ray Scattering H.Hayashi, Y.Udagawa, J.-M.Gillet, and C.-C.Kao in Chemical Application of Synchrotron Radiation, T.-K.Sham ed., World Scienctifc, in press. Coincidence experiments between X-rays and laser light have been carried out at the wiggler beam the X21 of Brookhaven National Laobratory between Feb.19 th and Mar.14 th. Analyses of the results are now in progress.

  21. A development of absorption spectra for wide energy region by inelastic x-ray scattering

    UDAGAWA Yasuo, MUNEKAWA Shigeru, WATANABE Noburo

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (B)

    Institution: TOHOKU UNIVERSITY

    1998 - 1999

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    Optical properties such as absorption coefficient and reflectivity are no only one of the most fundamental properties of matters but also are related to other properties like dielectric constants and van der Waals force. In particular, interactions of the material with x-rays and charged particles are also described by optical data, as long as they are known over wide energy range. Because of various experimental difficulties however, measurements of optical constants in the vacuum-uv and soft x-ray region are scarce, and are practically nonexistence about liquids. In this project an attempt is made to establish a new spectroscopic method that makes it possible to obtain spectra of various liquids over wide energy region by the use of inelastic scattering of hard x-rays. A new spectrometer which features versatility has been constructed with the present grant-in-aid, and it was sent to synchrotron radiation facilities (Photon Factory at Tsukuba and National Synchrotron Light Source at Brookhaven, U.S.A.). Measurements were carried out there and we have succeeded in obtaining inelastic x-ray scattering spectra of several liquids including water between 0 and 200 eV, which can be transformed to optical constants in the vacuum uv region. The data on water makes a basis of radiation chemistry, and a review paper has been written to the Journal of Japanese Radiation Chemistry Society. In addition, x-ray structure factor can also be deduced from momentum-transfer dependence of inelastic x-ray scattering spectra, which is closely related with electron correlation. The results have been analyzed in terms of the configuration interaction method as well as newly developed coupled cluster method.

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