Details of the Researcher

PHOTO

Yukinari Sumino
Section
Graduate School of Science
Job title
Professor
Degree

  • 博士（理学） (The University of Tokyo)

Research History 3

  • 2023/04 - Present
    Tohoku University　Graduate School of Science　Professor

  • 2012/08 - 2023/03
    Tohoku University　Faculty of Science　Associate Professor

  • 1993/10 - 2012/07
    Tohoku University　Faculty of Science　Research Associate

Committee Memberships 7

  • Particle Data Group　Encoder

    2016/01 - Present

  • 物理学会若手奨励賞審査委員会（素粒子論）　物理学会若手奨励賞審査委員

    2022/04 - 2024/03

  • 高エネルギー物理学奨励賞選考委員会　高エネルギー物理学奨励賞選考委員

    2021/06 - 2023/05

  • 素粒子論委員会　委員長

    2018/04 - 2019/03

  • Particle Data Group　Overseer

    2015/01 - 2015/12

  • 日本学術振興会　特別研究員等審査会専門委員及び国際事業委員会書面審査員

    2012/08 - 2013/07

  • 日本学術振興会　特別研究員等審査会専門委員及び国際事業委員会書面審査員

    2012/08 - 2013/07

Show all ︎Show first 5

Research Interests 8

  • QCDポテンシャル

  • クォークの閉じ込め

  • 輻射補正

  • 摂動計算

  • QCD

  • 束縛状態

  • トップクォーク

  • リニアコライダー

Research Areas 1

  • Natural sciences / Theoretical studies related to particle-, nuclear-, cosmic ray and astro-physics /

Papers 108

  1. Two-loop quarkonium Hamiltonian in annihilation channel Peer-reviewed

    Yukinari Sumino, Takahiro Ueda

    Physics Letters B　133　132903-1-132903-5　2026/08

    DOI： 10.1016/j.physletb.2026.140581 　

  2. Erratum to “Full Formula for Heavy Quarkonium Energy Levels at Next-to-next-to-next-to-leading Order” [Nuclear Physics B889 (2014) 156-191]

    Y. Kiyo, Y. Sumino

    Nuclear Physics B　2026/03

    DOI： 10.1016/j.nuclphysb.2026.117339 　

  3. Two-loop O(ϵ) term of 1/(mr2) heavy quarkonium potential Peer-reviewed

    Yukinari Sumino

    Physics Letters B　860　139223-1-139223-3　2025/01

    DOI： 10.1016/j.physletb.2024.139223 　

  4. (Proceedings) 2-loop Quarkonium Hamiltonian (Non-annihilation Channel) Peer-reviewed

    Yukinari Sumino

    Proceedings of Loops and Legs in Quantum Field Theory — PoS(LL2024)　020-020　2024/09/17

    Publisher: Sissa Medialab

    DOI： 10.22323/1.467.0020 　

  5. Review of Particle Physics Peer-reviewed

    S. Navas, C. Amsler, T. Gutsche, C. Hanhart, J. J. Hernández-Rey, C. Lourenço, A. Masoni, M. Mikhasenko, R. E. Mitchell, C. Patrignani, C. Schwanda, S. Spanier, G. Venanzoni, C. Z. Yuan, K. Agashe, G. Aielli, B. C. Allanach, J. Alvarez-Muñiz, M. Antonelli, E. C. Aschenauer, D. M. Asner, K. Assamagan, H. Baer, Sw. Banerjee, R. M. Barnett, L. Baudis, C. W. Bauer, J. J. Beatty, J. Beringer, A. Bettini, O. Biebel, K. M. Black, E. Blucher, R. Bonventre, R. A. Briere, A. Buckley, V. D. Burkert, M. A. Bychkov, R. N. Cahn, Z. Cao, M. Carena, G. Casarosa, A. Ceccucci, A. Cerri, R. S. Chivukula, G. Cowan, K. Cranmer, V. Crede, O. Cremonesi, G. D’Ambrosio, T. Damour, D. de Florian, A. de Gouvêa, T. DeGrand, S. Demers, Z. Demiragli, B. A. Dobrescu, M. D’Onofrio, M. Doser, H. K. Dreiner, P. Eerola, U. Egede, S. Eidelman, A. X. El-Khadra, J. Ellis, S. C. Eno, J. Erler, V. V. Ezhela, A. Fava, W. Fetscher, B. D. Fields, A. Freitas, H. Gallagher, T. Gershon, Y. Gershtein, T. Gherghetta, M. C. Gonzalez-Garcia, M. Goodman, C. Grab, A. V. Gritsan, C. Grojean, D. E. Groom, M. Grünewald, A. Gurtu, H. E. Haber, M. Hamel, S. Hashimoto, Y. Hayato, A. Hebecker, S. Heinemeyer, K. Hikasa, J. Hisano, A. Höcker, J. Holder, L. Hsu, J. Huston, T. Hyodo, Al. Ianni, M. Kado, M. Karliner, U. F. Katz, M. Kenzie, V. A. Khoze, S. R. Klein, F. Krauss, M. Kreps, P. Križan, B. Krusche, Y. Kwon, O. Lahav, L. P. Lellouch, J. Lesgourgues, A. R. Liddle, Z. Ligeti, C.-J. Lin, C. Lippmann, T. M. Liss, A. Lister, L. Littenberg, K. S. Lugovsky, S. B. Lugovsky, A. Lusiani, Y. Makida, F. Maltoni, A. V. Manohar, W. J. Marciano, J. Matthews, U.-G. Meißner, I.-A. Melzer-Pellmann, P. Mertsch, D. J. Miller, D. Milstead, K. Mönig, P. Molaro, F. Moortgat, M. Moskovic, N. Nagata, K. Nakamura, M. Narain, P. Nason, A. Nelles, M. Neubert, Y. Nir, H. B. O’Connell, C. A. J. O’Hare, K. A. Olive, J. A. Peacock, E. Pianori, A. Pich, A. Piepke, F. Pietropaolo, A. Pomarol, S. Pordes, S. Profumo, A. Quadt, K. Rabbertz, J. Rademacker, G. Raffelt, M. Ramsey-Musolf, P. Richardson, A. Ringwald, D. J. Robinson, S. Roesler, S. Rolli, A. Romaniouk, L. J Rosenberg, J. L. Rosner, G. Rybka, M. G. Ryskin, R. A. Ryutin, B. Safdi, Y. Sakai, S. Sarkar, F. Sauli, O. Schneider, S. Schönert, K. Scholberg, A. J. Schwartz, J. Schwiening, D. Scott, F. Sefkow, U. Seljak, V. Sharma, S. R. Sharpe, V. Shiltsev, G. Signorelli, M. Silari, F. Simon, T. Sjöstrand, P. Skands, T. Skwarnicki, G. F. Smoot, A. Soffer, M. S. Sozzi, C. Spiering, A. Stahl, Y. Sumino, F. Takahashi, M. Tanabashi, J. Tanaka, M. Taševský, K. Terao, K. Terashi, J. Terning, U. Thoma, R. S. Thorne, L. Tiator, M. Titov, D. R. Tovey, K. Trabelsi, P. Urquijo, G. Valencia, R. Van de Water, N. Varelas, L. Verde, I. Vivarelli, P. Vogel, W. Vogelsang, V. Vorobyev, S. P. Wakely, W. Walkowiak, C. W. Walter, D. Wands, D. H. Weinberg, E. J. Weinberg, N. Wermes, M. White, L. R. Wiencke, S. Willocq, C. L. Woody, R. L. Workman, W.-M. Yao, M. Yokoyama, R. Yoshida, G. Zanderighi, G. P. Zeller, R.-Y. Zhu, S.-L. Zhu, F. Zimmermann, P. A. Zyla, J. Anderson, M. Kramer, P. Schaffner, W. Zheng

    Physical Review D　110　(3)　2024/08/01

    Publisher: American Physical Society (APS)

    DOI： 10.1103/physrevd.110.030001 　

    ISSN： 2470-0010

    eISSN： 2470-0029

    More details Close

    The summarizes much of particle physics and cosmology. Using data from previous editions, plus 2,717 new measurements from 869 papers, we list, evaluate, and average measured properties of gauge bosons and the recently discovered Higgs boson, leptons, quarks, mesons, and baryons. We summarize searches for hypothetical particles such as supersymmetric particles, heavy bosons, axions, dark photons, etc. Particle properties and search limits are listed in Summary Tables. We give numerous tables, figures, formulae, and reviews of topics such as Higgs Boson Physics, Supersymmetry, Grand Unified Theories, Neutrino Mixing, Dark Energy, Dark Matter, Cosmology, Particle Detectors, Colliders, Probability and Statistics. Most of the 120 reviews are updated, including many that are heavily revised. The is divided into two volumes. Volume 1 includes the Summary Tables and 97 review articles. Volume 2 consists of the Particle Listings and contains also 23 reviews that address specific aspects of the data presented in the Listings. The complete (both volumes) is published online on the website of the Particle Data Group () and in a journal. Volume 1 is available in print as the . A with the Summary Tables and essential tables, figures, and equations from selected review articles is available in print, as a web version optimized for use on phones, and as an Android app. The 2024 edition of the Review of Particle Physics should be cited as: S. Navas et al. (Particle Data Group), Phys. Rev. D 110, 030001 (2024) © 20242024

  6. On order Λ_QCD^2/m renormalons in quarkonium system Peer-reviewed

    Takuya Agemura, Yukinari Sumino

    Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics　850　138505-1-7　2024/03

    DOI： 10.1016/j.physletb.2024.138505 　

    ISSN： 0370-2693

  7. Inclusive |Vcb | determination in MSbar mass scheme using dual-space-renormalon-subtraction method Peer-reviewed

    Yuuki Hayashi, Go Mishima, Yukinari Sumino, Hiromasa Takaura

    Physical Review D　108　(9)　094009-1-19　2023/11/01

    DOI： 10.1103/PhysRevD.108.094009 　

    ISSN： 2470-0010

    eISSN： 2470-0029

  8. Renormalon subtraction in OPE by dual space approach: nonlinear sigma model and QCD Peer-reviewed

    Yuuki Hayashi, Go Mishima, Yukinari Sumino, HiromasaTakaura

    Journal of High Energy Physics　2023　(6)　042-1-42　2023/06

    DOI： 10.1007/JHEP06(2023)042 　

    eISSN： 1029-8479

  9. Review of Particle Physics Peer-reviewed

    R L Workman, V D Burkert, V Crede, E Klempt, U Thoma, L Tiator, K Agashe, G Aielli, B C Allanach, C Amsler, M Antonelli, E C Aschenauer, D M Asner, H Baer, Sw Banerjee, R M Barnett, L Baudis, C W Bauer, J J Beatty, V I Belousov, J Beringer, A Bettini, O Biebel, K M Black, E Blucher, R Bonventre, V V Bryzgalov, O Buchmuller, M A Bychkov, R N Cahn, M Carena, A Ceccucci, A Cerri, R Sekhar Chivukula, G Cowan, K Cranmer, O Cremonesi, G D'Ambrosio, T Damour, D de Florian, A de Gouvêa, T DeGrand, P de Jong, S Demers, B A Dobrescu, M D'Onofrio, M Doser, H K Dreiner, P Eerola, U Egede, S Eidelman, A X El-Khadra, J Ellis, S C Eno, J Erler, V V Ezhela, W Fetscher, B D Fields, A Freitas, H Gallagher, Y Gershtein, T Gherghetta, M C Gonzalez-Garcia, M Goodman, C Grab, A V Gritsan, C Grojean, D E Groom, M Grünewald, A Gurtu, T Gutsche, H E Haber, Matthieu Hamel, C Hanhart, S Hashimoto, Y Hayato, A Hebecker, S Heinemeyer, J J Hernández-Rey, K Hikasa, J Hisano, A Höcker, J Holder, L Hsu, J Huston, T Hyodo, Al Ianni, M Kado, M Karliner, U F Katz, M Kenzie, V A Khoze, S R Klein, F Krauss, M Kreps, P Križan, B Krusche, Y Kwon, O Lahav, J Laiho, L P Lellouch, J Lesgourgues, A R Liddle, Z Ligeti, C-J Lin, C Lippmann, T M Liss, L Littenberg, C Lourenço, K S Lugovsky, S B Lugovsky, A Lusiani, Y Makida, F Maltoni, T Mannel, A V Manohar, W J Marciano, A Masoni, J Matthews, U-G Meißner, I-A Melzer-Pellmann, M Mikhasenko, D J Miller, D Milstead, R E Mitchell, K Mönig, P Molaro, F Moortgat, M Moskovic, K Nakamura, M Narain, P Nason, S Navas, A Nelles, M Neubert, P Nevski, Y Nir, K A Olive, C Patrignani, J A Peacock, V A Petrov, E Pianori, A Pich, A Piepke, F Pietropaolo, A Pomarol, S Pordes, S Profumo, A Quadt, K Rabbertz, J Rademacker, G Raffelt, M Ramsey-Musolf, B N Ratcliff, P Richardson, A Ringwald, D J Robinson, S Roesler, S Rolli, A Romaniouk, L J Rosenberg, J L Rosner, G Rybka, M G Ryskin, R A Ryutin, Y Sakai, S Sarkar, F Sauli, O Schneider, S Schönert, K Scholberg, A J Schwartz, J Schwiening, D Scott, F Sefkow, U Seljak, V Sharma, S R Sharpe, V Shiltsev, G Signorelli, M Silari, F Simon, T Sjöstrand, P Skands, T Skwarnicki, G F Smoot, A Soffer, M S Sozzi, S Spanier, C Spiering, A Stahl, S L Stone, Y Sumino, M J Syphers, F Takahashi, M Tanabashi, J Tanaka, M Taševský, K Terao, K Terashi, J Terning, R S Thorne, M Titov, N P Tkachenko, D R Tovey, K Trabelsi, P Urquijo, G Valencia, R Van de Water, N Varelas, G Venanzoni, L Verde, I Vivarelli, P Vogel, W Vogelsang, V Vorobyev, S P Wakely, W Walkowiak, C W Walter, D Wands, D H Weinberg, E J Weinberg, N Wermes, M White, L R Wiencke, S Willocq, C G Wohl, C L Woody, W-M Yao, M Yokoyama, R Yoshida, G Zanderighi, G P Zeller, O V Zenin, R-Y Zhu, Shi-Lin Zhu, F Zimmermann, P A Zyla

    Progress of Theoretical and Experimental Physics　2022　(8)　1-2270　2022/08/08

    Publisher: Oxford University Press (OUP)

    DOI： 10.1093/ptep/ptac097 　

    eISSN： 2050-3911

    More details Close

    Abstract The Review summarizes much of particle physics and cosmology. Using data from previous editions, plus 2,143 new measurements from 709 papers, we list, evaluate, and average measured properties of gauge bosons and the recently discovered Higgs boson, leptons, quarks, mesons, and baryons. We summarize searches for hypothetical particles such as supersymmetric particles, heavy bosons, axions, dark photons, etc. Particle properties and search limits are listed in Summary Tables. We give numerous tables, figures, formulae, and reviews of topics such as Higgs Boson Physics, Supersymmetry, Grand Unified Theories, Neutrino Mixing, Dark Energy, Dark Matter, Cosmology, Particle Detectors, Colliders, Probability and Statistics. Among the 120 reviews are many that are new or heavily revised, including a new review on Machine Learning, and one on Spectroscopy of Light Meson Resonances. The Review is divided into two volumes. Volume 1 includes the Summary Tables and 97 review articles. Volume 2 consists of the Particle Listings and contains also 23 reviews that address specific aspects of the data presented in the Listings. The complete Review (both volumes) is published online on the website of the Particle Data Group (pdg.lbl.gov) and in a journal. Volume 1 is available in print as the PDG Book. A Particle Physics Booklet with the Summary Tables and essential tables, figures, and equations from selected review articles is available in print, as a web version optimized for use on phones, and as an Android app.

  10. Determination of |V_cb| using N3LO perturbative corrections to Γ(B → Xℓν) and 1S masses Peer-reviewed

    Yuuki Hayashi, Yukinari Sumino, Hiromasa Takaura

    Physics Letters B　829　137068-1-8　2022/06

    Publisher: Elsevier BV

    DOI： 10.1016/j.physletb.2022.137068 　

    ISSN： 0370-2693

  11. Renormalon subtraction in OPE using Fourier transform: formulation and application to various observables Peer-reviewed

    Yuuki Hayashi, Yukinari Sumino, Hiromasa Takaura

    Journal of High Energy Physics　2022　(2)　16-1-63　2022/02

    Publisher: Springer Science and Business Media LLC

    DOI： 10.1007/jhep02(2022)016 　

    eISSN： 1029-8479

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    Abstract Properly separating and subtracting renormalons in the framework of the op- erator product expansion (OPE) is a way to realize high precision computation of QCD effects in high energy physics. We propose a new method (FTRS method), which enables to subtract multiple renormalons simultaneously from a general observable. It utilizes a property of Fourier transform, and the leading Wilson coefficient is written in a one-parameter integral form whose integrand has suppressed (or vanishing) renormalons. The renormalon subtraction scheme coincides with the usual principal-value prescription at large orders. We perform test analyses and subtract the $$ \mathcal{O}\left({\Lambda}_{\mathrm{QCD } }^4\right) $$ renormalon from the Adler function, the $$ \mathcal{O}\left({\Lambda}_{\mathrm{QCD } }^2\right) $$ renormalon from the B → Xul$$ \overline{\nu} $$ decay width, and the $$ \mathcal{O} $$(ΛQCD) and $$ \mathcal{O}\left({\Lambda}_{\mathrm{QCD } }^2\right) $$ renormalons from the B, D meson masses. The analyses show good consistency with theoretical expectations, such as improved convergence and scale dependence. In particular we obtain $$ \overline{\Lambda} $$FTRS = 0.495 ± 0.053 GeV and ($$ {\mu}_{\pi}^2 $$)FTRS = −0.12 ± 0.23 GeV2 for the non-perturbative parameters of HQET. We explain the formulation and analyses in detail.

  12. New method for renormalon subtraction using Fourier transform Peer-reviewed

    Y. Hayashi, Y. Sumino, H. Takaura

    Physics Letters B　819　136414-136414　2021/08

    Publisher: Elsevier BV

    DOI： 10.1016/j.physletb.2021.136414 　

    ISSN： 0370-2693

  13. Review of Particle Physics Invited Peer-reviewed

    P A Zyla

    Progress of Theoretical and Experimental Physics　2020　(8)　083C01　2020/08/14

    Publisher: Oxford University Press (OUP)

    DOI： 10.1093/ptep/ptaa104 　

    eISSN： 2050-3911

    More details Close

    <title>Abstract</title> The Review summarizes much of particle physics and cosmology. Using data from previous editions, plus 3,324 new measurements from 878 papers, we list, evaluate, and average measured properties of gauge bosons and the recently discovered Higgs boson, leptons, quarks, mesons, and baryons. We summarize searches for hypothetical particles such as supersymmetric particles, heavy bosons, axions, dark photons, etc. Particle properties and search limits are listed in Summary Tables. We give numerous tables, figures, formulae, and reviews of topics such as Higgs Boson Physics, Supersymmetry, Grand Unified Theories, Neutrino Mixing, Dark Energy, Dark Matter, Cosmology, Particle Detectors, Colliders, Probability and Statistics. Among the 120 reviews are many that are new or heavily revised, including a new review on High Energy Soft QCD and Diffraction and one on the Determination of CKM Angles from B Hadrons. The Review is divided into two volumes. Volume 1 includes the Summary Tables and 98 review articles. Volume 2 consists of the Particle Listings and contains also 22 reviews that address specific aspects of the data presented in the Listings. The complete Review (both volumes) is published online on the website of the Particle Data Group (pdg.lbl.gov) and in a journal. Volume 1 is available in print as the PDG Book. A Particle Physics Booklet with the Summary Tables and essential tables, figures, and equations from selected review articles is available in print and as a web version optimized for use on phones as well as an Android app.

  14. On renormalons of static QCD potential at u = 1/2 and 3/2 Peer-reviewed

    Yukinari Sumino, Hiromasa Takaura

    Journal of High Energy Physics　2020　(5)　116　2020/05

    Publisher: Springer Science and Business Media LLC

    DOI： 10.1007/jhep05(2020)116 　

    eISSN： 1029-8479

  15. Perturbative static quark potential in Maximal Abelian gauge Peer-reviewed

    Matthias Berwein, Yukinari Sumino

    Physics Letters B　799　135014-135014　2019/12

    Publisher: Elsevier BV

    DOI： 10.1016/j.physletb.2019.135014 　

    ISSN： 0370-2693

  16. UV contributions to energy of a static quark-antiquark pair in large $β_0$ approximation Peer-reviewed

    Yuuki Hayashi, Yukinari Sumino

    B795　107-112　2019/08

    DOI： 10.1016/j.physletb.2019.05.049 　

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    The total energy of a static quark-antiquark pair $E_{\rm tot}(r)=2m_{\rm<br /> pole}+V_{\rm QCD}(r)$ is known to be predictable up to ${\cal O}(\Lambda_{\rm<br /> QCD}^3 r^2)$ and ${\cal O}(\frac{\Lambda_{\rm QCD}^3}{\overline{m}^2})$<br /> renormalon uncertainties in the large-$\beta_0$ approximation, after canceling<br /> ${\cal O}(\Lambda_{\rm QCD})$ renormalons. We compute the predictable part<br /> (genuine UV part) in terms of the $\overline{\rm MS}$ mass $\overline{m}$,<br /> extending a recently-proposed method which conforms with OPE. In particular the<br /> $r$-independent part is determined. The result would help understanding the<br /> nature of $E_{\rm tot}(r)$ in the context of OPE with renormalon subtraction.

  17. Determination of αs from static QCD potential: OPE with renormalon subtraction and lattice QCD Peer-reviewed

    Hiromasa Takaura, Takashi Kaneko, Yuichiro Kiyo, Yukinari Sumino

    Journal of High Energy Physics　04　(155)　1-40　2019/04

    Publisher: Springer Science and Business Media LLC

    DOI： 10.1007/jhep04(2019)155 　

    eISSN： 1029-8479

  18. Determination of αs from static QCD potential with renormalon subtraction Peer-reviewed

    Hiromasa Takaura, Takashi Kaneko, Yuichiro Kiyo, Yukinari Sumino

    B789　598-602　2019/02

    DOI： 10.1016/j.physletb.2018.12.060 　

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    We determine the strong coupling constant $\alpha_s(M_Z)$ from the static QCD<br /> potential by matching a lattice result and a theoretical calculation. We use a<br /> new theoretical framework based on operator product expansion (OPE), where<br /> renormalons are subtracted from the leading Wilson coefficient. We find that<br /> our OPE prediction can explain the lattice data at $\Lambda_{\rm QCD} r<br /> \lesssim 0.8$. This allows us to use a larger window in matching, which leads<br /> to a more reliable determination. We obtain<br /> $\alpha_s(M_Z)=0.1179^{+0.0015}_{-0.0014}$.

  19. Review of Particle Physics Peer-reviewed

    M. Tanabashi

    D98　(3)　030001-1-030001-1898　2018/08

  20. Probing Higgs self-coupling of a classically scale invariant model in e+e− → Zhh: Evaluation at physical point Peer-reviewed

    Y. Fujitani, Y. Sumino

    Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics　779　46-51　2018/04/10

    Publisher: Elsevier B.V.

    DOI： 10.1016/j.physletb.2018.01.067 　

    ISSN： 0370-2693

  21. Determination of m(c) and m(b) from quarkonium 1S energy levels in perturbative QCD (vol 752, pg 122, 2016) Peer-reviewed

    Y. Kiyo, G. Mishima, Y. Sumino

    PHYSICS LETTERS B　772　878-878　2017/09

    DOI： 10.1016/j.physletb.2017.09.024 　

    ISSN： 0370-2693

    eISSN： 1873-2445

  22. Subtracting infrared renormalons from Wilson coefficients: Uniqueness and power dependences on A(QCD) Peer-reviewed

    Go Mishima, Yukinari Sumino, Hiromasa Takaura

    PHYSICAL REVIEW D　95　(11)　114016-1-114016-30　2017/06

    DOI： 10.1103/PhysRevD.95.114016 　

    ISSN： 2470-0010

    eISSN： 2470-0029

  23. REVIEW OF PARTICLE PHYSICS Particle Data Group Peer-reviewed

    C. Patrignani

    CHINESE PHYSICS C　40　(10)　100001-1-100001-1808　2016/10

    DOI： 10.1088/1674-1137/40/10/100001 　

    ISSN： 1674-1137

  24. WW scattering in a radiative electroweak symmetry breaking scenario Peer-reviewed

    Kazuhiro Endo, Koji Ishiwata, Yukinari Sumino

    PHYSICAL REVIEW D　94　(7)　075007-1-075007-17　2016/10

    DOI： 10.1103/PhysRevD.94.075007 　

    ISSN： 2470-0010

    eISSN： 2470-0029

  25. On enhanced corrections from quasi-degenerate states to heavy quarkonium observables Peer-reviewed

    Y. Kiyo, G. Mishima, Y. Sumino

    PHYSICS LETTERS B　761　184-189　2016/10

    DOI： 10.1016/j.physletb.2016.08.026 　

    ISSN： 0370-2693

    eISSN： 1873-2445

  26. UV contribution and power dependence on Lambda(QCD) of Adler function Peer-reviewed

    G. Mishima, Y. Sumino, H. Takaura

    PHYSICS LETTERS B　759　550-554　2016/08

    DOI： 10.1016/j.physletb.2016.06.010 　

    ISSN： 0370-2693

    eISSN： 1873-2445

  27. Computation of Heavy Quarkonium Spectrum in Perturbative QCD

    Y. Sumino

    C16-04-24, arXiv:1607.03469 [hep-ph]　2016/07

  28. 19pAL-11 Positive powered Λ_<QCD> from perturbative series

    Mishima G., Sumino Y., Takaura H.

    Meeting Abstracts of the Physical Society of Japan　71　23-23　2016

    Publisher: The Physical Society of Japan (JPS)

    DOI： 10.11316/jpsgaiyo.71.1.0_23 　

    ISSN： 2189-079X

  29. 20pAL-11 A model with radiative electroweak symmetry breaking and its indirect search in longitudinal W boson scattering

    Endo K., Ishiwata K., Sumino Y.

    Meeting Abstracts of the Physical Society of Japan　71　41-41　2016

    Publisher: The Physical Society of Japan (JPS)

    DOI： 10.11316/jpsgaiyo.71.1.0_41 　

    ISSN： 2189-079X

  30. Determination of m(c) and m(b) from quarkonium 1S energy levels inperturbative QCD Peer-reviewed

    Y. Kiyo, G. Mishima, Y. Sumino

    PHYSICS LETTERS B　752　122-127　2016/01

    DOI： 10.1016/j.physletb.2015.11.040 　

    ISSN： 0370-2693

    eISSN： 1873-2445

  31. Strong IR cancellation in heavy quarkonium and precise top mass determination Peer-reviewed

    Y. Kiyo, G. Mishima, Y. Sumino

    JOURNAL OF HIGH ENERGY PHYSICS　1511　(11)　084　2015/11

    DOI： 10.1007/JHEP11(2015)084 　

    ISSN： 1029-8479

  32. A scale-invariant Higgs sector and structure of the vacuum Peer-reviewed

    K. Endo, Y. Sumino

    JOURNAL OF HIGH ENERGY PHYSICS　1505　(5)　030-1-030-25　2015/05

    DOI： 10.1007/JHEP05(2015)030 　

    ISSN： 1029-8479

  33. Weight function method for precise determination of top quark mass at Large Hadron Collider Peer-reviewed

    Sayaka Kawabata, Yasuhiro Shimizu, Yukinari Sumino, Hiroshi Yokoya

    PHYSICS LETTERS B　741　232-238　2015/02

    DOI： 10.1016/j.physletb.2014.12.044 　

    ISSN： 0370-2693

    eISSN： 1873-2445

  34. Violation of Casimir scaling for static QCD potential at three-loop order (vol 838, pg 28, 2010)

    C. Anzai, Y. Kiyo, Y. Sumino

    NUCLEAR PHYSICS B　890　569-569　2015/01

    DOI： 10.1016/j.nuclphysb.2014.11.025 　

    ISSN： 0550-3213

    eISSN： 1873-1562

  35. Full formula for heavy quarkonium energy levels at next-to-next-to-next-to-leading order Peer-reviewed

    Y. Kiyo, Y. Sumino

    NUCLEAR PHYSICS B　889　156-191　2014/12

    DOI： 10.1016/j.nuclphysb.2014.10.010 　

    ISSN： 0550-3213

    eISSN： 1873-1562

  36. Understanding Interquark Force and Quark Masses in Perturbative QCD

    Y. Sumino

    arXiv:1411.7853 [hep-ph], Lecture note　2014/11

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    Based on the lecture courses given at Rikkyo Univ., Kyoto Univ., Karlsruhe Univ. and Nagoya<br /> Univ., during 2012–2014.

  37. A Modern View of Perturbative QCD and Application to Heavy Quarkonium Systems

    Y. Sumino

    ArXiv: 1407.5353 [hep-ph]　2014/07/21

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    Lecture given at ``QCD Club,&quot; on 12 June 2014 at Univ. of Tokyo, Japan.

  38. Perturbative heavy quarkonium spectrum at next-to-next-to-next-to-leading order Peer-reviewed

    Y. Kiyo, Y. Sumino

    PHYSICS LETTERS B　730　76-80　2014/03

    DOI： 10.1016/j.physletb.2014.01.030 　

    ISSN： 0370-2693

    eISSN： 1873-2445

  39. Estimate of 4-loop pole-(MS)over-bar mass relation from static QCD potential Peer-reviewed

    Y. Sumino

    PHYSICS LETTERS B　728　73-76　2014/01

    DOI： 10.1016/j.physletb.2013.11.022 　

    ISSN： 0370-2693

    eISSN： 1873-2445

  40. Study of top quark pair production near threshold at the ILC

    Tomohiro Horiguchi, Akimasa Ishikawa, Taikan Suehara, Keisuke Fujii, Yukinari Sumino, Yuichiro Kiyo, Hitoshi Yamamoto

    1310.0563　2013/10/02

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    We report on a study of top pair production at the International Linear<br /> Collider (ILC) around center of mass energy (E$_{\rm CM}$) = 350 GeV using an<br /> ILD detector simulator based on the Detailed Baseline Design (DBD)<br /> configuration. Here we will report on a result of 6-Jet final state, $t\ bar{t}<br /> \rightarrow bWbW \rightarrow bqqbqq$. A result for the 4-Jet final state, $t\<br /> bar{t} \rightarrow bWbW \rightarrow bqqbl\nu$, which has almost the same<br /> statics as that of the 6-Jet final state will be included in the future. For an<br /> energy scan of 11 center of mass energy points (340 - 350GeV) and two beam<br /> polarization combinations (P($e^+,\ e^-$) = ($\pm$0.3, $\mp$0.8)) with 10<br /> fb$^{-1}$ each, the statistical errors on the top quark Yukawa coupling, its<br /> mass and width are estimated. The results are $\delta y_t$ = 4.2%, $\delta m_t$<br /> = 16 MeV in potential subtracted scheme (PS), and $\delta \Gamma_t$ = 21 MeV.

  41. Measurement of physical parameters with a weight function method and its application to the Higgs boson mass reconstruction Peer-reviewed

    S. Kawabata, Y. Shimizu, Y. Sumino, H. Yokoya

    JOURNAL OF HIGH ENERGY PHYSICS　1308　(8)　129-1-129-30　2013/08

    DOI： 10.1007/JHEP08(2013)129 　

    ISSN： 1029-8479

  42. Algorithms to evaluate multiple sums for loop computations Peer-reviewed

    C. Anzai, Y. Sumino

    JOURNAL OF MATHEMATICAL PHYSICS　54　(3)　033514-1-033514-22　2013/03

    DOI： 10.1063/1.4795288 　

    ISSN： 0022-2488

  43. Boost-invariant leptonic observables and reconstruction of parent particle mass Peer-reviewed

    Sayaka Kawabata, Yasuhiro Shimizu, Yukinari Sumino, Hiroshi Yokoya

    PHYSICS LETTERS B　710　(4-5)　658-664　2012/04

    DOI： 10.1016/j.physletb.2012.03.050 　

    ISSN： 0370-2693

  44. Measuring the top Yukawa coupling at the ILC at root s=500 GeV Peer-reviewed

    Ryo Yonamine, Katsumasa Ikematsu, Tomohiko Tanabe, Keisuke Fujii, Yuichiro Kiyo, Yukinari Sumino, Hiroshi Yokoya

    PHYSICAL REVIEW D　84　(1)　014033--1-014033--9　2011/07

    DOI： 10.1103/PhysRevD.84.014033 　

    ISSN： 1550-7998

  45. Heavy quarkonium: progress, puzzles, and opportunities Peer-reviewed

    N. Brambilla, S. Eidelman, B. K. Heltsley, R. Vogt, G. T. Bodwin, E. Eichten, A. D. Frawley, A. B. Meyer, R. E. Mitchell, V. Papadimitriou, P. Petreczky, A. A. Petrov, P. Robbe, A. Vairo, A. Andronic, R. Arnaldi, P. Artoisenet, G. Bali, A. Bertolin, D. Bettoni, J. Brodzicka, G. E. Bruno, A. Caldwell, J. Catmore, C. -H. Chang, K. -T. Chao, E. Chudakov, P. Cortese, P. Crochet, A. Drutskoy, U. Ellwanger, P. Faccioli, A. Gabareen Mokhtar, X. Garcia i Tormo, C. Hanhart, F. A. Harris, D. M. Kaplan, S. R. Klein, H. Kowalski, J. -P. Lansberg, E. Levichev, V. Lombardo, C. Lourenco, F. Maltoni, A. Mocsy, R. Mussa, F. S. Navarra, M. Negrini, M. Nielsen, S. L. Olsen, P. Pakhlov, G. Pakhlova, K. Peters, A. D. Polosa, W. Qian, J. -W. Qiu, G. Rong, M. A. Sanchis-Lozano, E. Scomparin, P. Senger, F. Simon, S. Stracka, Y. Sumino, M. Voloshin, C. Weiss, H. K. Woehri, C. -Z. Yuan

    EUROPEAN PHYSICAL JOURNAL C　71　(2)　1534-1-1534-178　2011/02

    DOI： 10.1140/epjc/s10052-010-1534-9 　

    ISSN： 1434-6044

    eISSN： 1434-6052

  46. Tests of a family gauge symmetry model at 10(3) TeV scale Peer-reviewed

    Yoshio Koide, Yukinari Sumino, Masato Yamanaka

    PHYSICS LETTERS B　695　(1-4)　279-284　2011/01

    DOI： 10.1016/j.physletb.2010.11.048 　

    ISSN： 0370-2693

  47. Violation of Casimir scaling for static QCD potential at three-loop order Peer-reviewed

    C. Anzai, Y. Kiyo, Y. Sumino

    NUCLEAR PHYSICS B　838　(1-2)　28-46　2010/10

    DOI： 10.1016/j.nuclphysb.2010.05.012 　

    ISSN： 0550-3213

  48. Bound-state effects on kinematical distributions of top quarks at hadron colliders Peer-reviewed

    Yukinari Sumino, Hiroshi Yokoya

    JOURNAL OF HIGH ENERGY PHYSICS　2010　(9)　1-39　2010/09

    DOI： 10.1007/JHEP09(2010)034 　

    ISSN： 1029-8479

  49. Static QCD Potential at Three-Loop Order Peer-reviewed

    C. Anzai, Y. Kiyo, Y. Sumino

    PHYSICAL REVIEW LETTERS　104　(11)　112003-1-112003-4　2010/03

    DOI： 10.1103/PhysRevLett.104.112003 　

    ISSN： 0031-9007

    eISSN： 1079-7114

  50. Family gauge symmetry as an origin of Koide's mass formula and charged lepton spectrum Peer-reviewed

    Y. Sumino

    JOURNAL OF HIGH ENERGY PHYSICS　05　(5)　1-43　2009/05

    DOI： 10.1088/1126-6708/2009/05/075 　

    ISSN： 1029-8479

  51. Family Gauge Symmetry as an Origin of Koide's Mass Formula and Charged Lepton Spectrum

    Yukinari Sumino

    hep-ph　arXiv:0903.3640[hep-ph]　2009/03

  52. Family gauge symmetry and Koide's mass formula Peer-reviewed

    Yukinari Sumino

    PHYSICS LETTERS B　671　(4-5)　477-480　2009/02

    DOI： 10.1016/j.physletb.2008.12.060 　

    ISSN： 0370-2693

    eISSN： 1873-2445

  53. Bound-state effects on top quark production at hadron colliders Peer-reviewed

    Kaoru Hagiwara, Yukinari Surnino, Hiroshi Yokoya

    PHYSICS LETTERS B　666　(1)　71-76　2008/08

    DOI： 10.1016/j.physletb.2008.07.006 　

    ISSN： 0370-2693

  54. Static QCD potential at r &lt;Lambda(-1)(QCD): Perturbative expansion and operator-product expansion Peer-reviewed

    Y. Sumino

    PHYSICAL REVIEW D　76　(11)　114009-1-114009-38　2007/12

    DOI： 10.1103/PhysRevD.76.114009 　

    ISSN： 1550-7998

  55. QCD correction to neutralino annihilation process and dark matter density in supersymmetric models Peer-reviewed

    Takeo Moroi, Yukinari Sumino, Akira Yotsuyanagi

    PHYSICAL REVIEW D　74　(1)　015016-1-015016-11　2006/07

    DOI： 10.1103/PhysRevD.74.015016 　

    ISSN： 1550-7998

  56. Search for anomalous couplings in top decay at hadron colliders Peer-reviewed

    S Tsuno, Nakano, I, R Tanaka, Y Sumino

    PHYSICAL REVIEW D　73　(5)　054011-1-054011-12　2006/03

    DOI： 10.1103/PhysRevD.73.054011 　

    ISSN： 1550-7998

  57. New method for reconstructing effective top quark spin Peer-reviewed

    Y Sumino, S Tsuno

    PHYSICS LETTERS B　633　(6)　715-720　2006/02

    DOI： 10.1016/j.physletb.2005.12.069 　

    ISSN： 0370-2693

  58. OPE analysis of QCD potential and determination of Lambda_MSbar

    Y. Sumino

    Proceedings of 23rd International Symposium on Lattice Field Theory (Lattice 2005)　035-1-035-6　2005/10

  59. Perturbative QCD potential and string tension

    Y. Sumino

    Proceedings of the 13th International Seminar on High Energy Physics (Quarks 2004)　1　51-64　2004/10

  60. "Coulomb + linear" form of the static QCD potential in operator-product expansion Peer-reviewed

    Y. Sumino

    Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics　595　(1-4)　387-392　2004/08/12

    DOI： 10.1016/j.physletb.2004.06.065 　

    ISSN： 0370-2693

  61. Heavy Quarkonium Spectroscopy from Perturbative QCD

    Y. Sumino

    KEK Proceedings　2004　(6)　76-85　2004/05

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    Proceedings of the 9th Accelerator and Particle Physics Institute<br /> (APPI2004)

  62. Fine and hyperfine splittings of charmonium and bottomonium: an improved perturbative QCD approach Peer-reviewed

    S Recksiegel, Y Sumino

    PHYSICS LETTERS B　578　(3-4)　369-375　2004/01

    DOI： 10.1016/j.physletb.2003.10.070 　

    ISSN： 0370-2693

    eISSN： 1873-2445

  63. Comparing the QCD potential in perturbative QCD and lattice QCD at large distances Peer-reviewed

    S Recksiegel, Y Sumino

    EUROPEAN PHYSICAL JOURNAL C　31　(2)　187-196　2003/11

    DOI： 10.1140/epjc/s2003-01319-9 　

    ISSN： 1434-6044

  64. QCD potential as a "Coulomb-plus-linear" potential Peer-reviewed

    Y Sumino

    PHYSICS LETTERS B　571　(3-4)　173-183　2003/10

    DOI： 10.1016/j.physletb.2003.05.010 　

    ISSN： 0370-2693

  65. QCD Potential and Heavy Quarkonium Spectroscopy in Perturbative QCD

    Y. Sumino

    KEK Proceedings　2003　(7)　71-78　2003/08

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    Proceedings of <br /> the International Symposium on<br /> ``Hadron Spectroscopy, Chiral Symmetry and<br /> Relativistic Description of Bound Systems&#039;&#039;

  66. How well can we reconstruct the t(t)over-bar system near its threshold at future e(+)e(-) linear colliders? Peer-reviewed

    K Ikematsu, K Fujii, Z Hioki, Y Sumino, T Takahashi

    EUROPEAN PHYSICAL JOURNAL C　29　(1)　1-10　2003/07

    DOI： 10.1140/epjc/s2003-01202-9 　

    ISSN： 1434-6044

  67. Understanding heavy quarkonium systems in perturbative QCD

    Y Sumino

    NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS　121　217-220　2003/06

    DOI： 10.1016/S0920-5632(03)01850-4 　

    ISSN： 0920-5632

  68. Top quark mass determination and O(alpha(5)(S)m) correction to the toponium 1S energy level Peer-reviewed

    Y Kiyo, Y Sumino

    PHYSICAL REVIEW D　67　(7)　071501-1-071501-5　2003/04

    DOI： 10.1103/PhysRevD.67.071501 　

    ISSN： 0556-2821

  69. Top quark mass determination and [Formula Presented] correction to the toponium [Formula Presented] energy level Peer-reviewed

    Y. Kiyo, Y. Sumino

    Physical Review D - Particles, Fields, Gravitation and Cosmology　67　(7)　2003

    DOI： 10.1103/PhysRevD.67.071501 　

    ISSN： 1550-2368 1550-7998

  70. Improved perturbative QCD approach to the bottomonium spectrum Peer-reviewed

    S Recksiegel, Y Sumino

    PHYSICAL REVIEW D　67　(1)　014004-1-014004-14　2003/01

    DOI： 10.1103/PhysRevD.67.014004 　

    ISSN： 0556-2821

  71. Top quark and QCD physics at $e^+e^-$ linear colliders: recent progress

    Y. Sumino

    Proceedings of the International Linear Collider Workshop　325-332　2002/12

  72. Future $e^+e^-$ Collider and Top Quark Physics

    隅野行成

    日本物理学会誌　57　(10)　719-727　2002/10

    Publisher: 日本物理学会

    DOI： 10.11316/butsuri1946.57.719 　

    ISSN： 0029-0181

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    解説記事

  73. Off-shell suppression of renormalons in non-relativistic QCD boundstates Peer-reviewed

    Y. Kiyo, Y. Sumino

    Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics　535　(1-4)　145-154　2002/05/23

    DOI： 10.1016/S0370-2693(02)01731-8 　

    ISSN： 0370-2693

  74. Connection between the perturbative QCD potential and phenomenological potentials Peer-reviewed

    Y Sumino

    PHYSICAL REVIEW D　65　(5)　054003-1-054003-9　2002/03

    DOI： 10.1103/PhysRevD.65.054003 　

    ISSN： 0556-2821

  75. Perturbative QCD potential, renormalon cancellation, and phenomenological potentials Peer-reviewed

    S Recksiegel, Y Sumino

    PHYSICAL REVIEW D　65　(5)　054018-1-054018-9　2002/03

    DOI： 10.1103/PhysRevD.65.054018 　

    ISSN： 0556-2821

  76. Quarkonium spectroscopy and perturbative QCD: Massive quark-loop effects Peer-reviewed

    N Brambilla, Y Sumino, A Vairo

    PHYSICAL REVIEW D　65　(3)　034001-1-034001-19　2002/02

    DOI： 10.1103/PhysRevD.65.034001 　

    ISSN： 0556-2821

  77. Particle Physics Experiments at JLC

    K. Abe

    KEK-REPORT　2001　(11)　2001/09

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    ACFA Linear Collider Working Group

  78. Quarkonium spectroscopy and perturbative QCD: A new perspective Peer-reviewed

    N. Brambilla, Y. Sumino, A. Vairo

    Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics　513　(3-4)　381-390　2001/08/02

    DOI： 10.1016/S0370-2693(01)00611-6 　

    ISSN： 0370-2693

  79. Quarkonium Spectroscopy and Perturbative QCD: A New Perspective

    Y. Sumino

    KEK Proceedings　2001　202-220　2001/05

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    Proceedings of the 6th Accelerator and Particle Physics Institute<br /> (APPI2001)

  80. Simulation study of top quark reconstruction near the t(t)over-bar threshold Peer-reviewed

    K Ikematsu, K Fujii, Z Hioki, T Nagano, Y Sumino, T Takahashi

    PHYSICS AND EXPERIMENTS WITH FUTURE LINEAR E(PLUS) E(MINUS) COLLIDERS　578　336-339　2001

    ISSN： 0094-243X

  81. Toward determination of m(t) at 50 MeV accuracy

    Y Sumino

    PHYSICS AND EXPERIMENTS WITH FUTURE LINEAR E(PLUS) E(MINUS) COLLIDERS　578　330-335　2001

    ISSN： 0094-243X

  82. O(α s/ 5m) quarkonium 1S spectrum in large-β 0 approximation and renormalon cancellation Peer-reviewed

    Y. Kiyo, Y. Sumino

    Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics　496　(1-2)　83-88　2000/12/21

    DOI： 10.1016/S0370-2693(00)01282-X 　

    ISSN： 0370-2693

  83. Probe of $CP$ Violation in $e^+e^- \\to t\\bar$ Near Threshold Peer-reviewed

    M. Jezabek, T. Nagano, Y. Sumino

    Physical Review　D62　(1)　.014034-1-014034-13　2000/12

    Publisher: American Physical Society

    DOI： 10.1103/PhysRevD.62.014034 　

    ISSN： 1550-7998

  84. Gauge Dependence and Matching Procedure of a Non-relativistic QCD Boundstate Formalism

    Y. Sumino

    Proceedings of International Symposium on Quantum Chromodynamics and Color Confinement　374-378　2000/08

  85. Top-Antitop Pair Production Close to Threshold: Synopsis of Recent NNLO Results

    A.H. Hoang, M. Beneke, K. Melnikov, T. Nagano, A. Ota, A.A. Penin, A.A. Pivovarov, A. Signer, V.A. Smirnov, Y. Sumino, T. Teubner, O. Yakovlev, A. Yelkhovsky

    European Journal of Physics Direct　C3　1-22　2000/01

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    Contributed to the 4th Workshop on Physics and Detectors for a <br /> Linear Electron Positron Collider (2nd Joint ECFA/DESY<br /> Study)

  86. Gauge dependence and matching procedure of a nonrelativistic QED-QCD bound state formalism Peer-reviewed

    K. Hasebe, Y. Sumino

    Physical Review D - Particles, Fields, Gravitation and Cosmology　61　(10)　105001-1-105001-18　2000

    DOI： 10.1103/PhysRevD.61.105001 　

    ISSN： 1550-2368 1550-7998

  87. Recent Theoretical Progress in $t\\bar$ Threshold Analyses

    Y. Sumino

    Proceedings of Worldwide Study on Physics and Experiments with Future Linear $e^+e^-$ Colliders　1999/12

  88. ${\\cal O} ( \\alpha_s^2 )$ Corrections to $e^+e^- \\to t\\bar$ Total and Differential Cross Sections Near Threshold Peer-reviewed

    T. Nagano, A. Ota, Y. Sumino

    Physical Review　D60　114014-1-114014-11　1999/04

  89. [formula presented] corrections to [formula presented] total and differential cross sections near threshold Peer-reviewed

    T. Nagano, A. Ota, Y. Sumino

    Physical Review D - Particles, Fields, Gravitation and Cosmology　60　(11)　1999

    DOI： 10.1103/PhysRevD.60.114014 　

    ISSN： 1550-2368 1550-7998

  90. Neutrino masses and bimaximal mixing Peer-reviewed

    M. Jezabek, Y. Sumino

    Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics　457　(1-3)　139-146　1999

    Publisher: Elsevier

    DOI： 10.1016/S0370-2693(99)00517-1 　

    ISSN： 0370-2693

  91. Neutrino mixing and see-saw mechanism Peer-reviewed

    M Jezabek, Y Sumino

    PHYSICS LETTERS B　440　(3-4)　327-331　1998/11

    DOI： 10.1016/S0370-2693(98)01113-7 　

    ISSN： 0370-2693

  92. QCD Potential and $t\\bar$ Threshold Cross Section: Status Report

    M. Jezabek, J.H. Kuhn, M. Peter, Y. Sumino, T.~Teubner

    DESY Report　97　(123E)　3-18　1998/10

  93. The Perturbative QCD Potential and The $t\\bar$ Threshold Peer-reviewed

    M. Jezabek, J.H. Kuhn, M. Peter, Y. Sumino, T. Teubner

    Physical Review　D58　(1)　p.014006-1-p.014006-9　1998/08

    Publisher: American Physical Society

    DOI： 10.1103/PhysRevD.58.014006 　

    ISSN： 1550-7998

  94. Relation between QCD potentials in momentum and position space Peer-reviewed

    M. Jezabek, M. Peter, Y. Sumino

    Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics　428　(3-4)　352-358　1998/06/04

    Publisher: Elsevier

    DOI： 10.1016/S0370-2693(98)00418-3 　

    ISSN： 0370-2693

  95. Final-state interactions in e(+)e(-)-&gt; t(t)over-bar -&gt; bl(+)nu(b)over-barW(-) near the top quark threshold Peer-reviewed

    M Peter, Y Sumino

    PHYSICAL REVIEW D　57　(11)　6912-6927　1998/06

    DOI： 10.1103/PhysRevD.57.6912 　

    ISSN： 2470-0010

    eISSN： 2470-0029

  96. Decay of top quarks in e(+)e(-)-&gt; t(t)over-bar near threshold

    Y Sumino, M Jezabek

    ACTA PHYSICA POLONICA B　29　(5)　1443-1456　1998/05

    ISSN： 0587-4254

  97. Top Quark Pair Production and Decay Near Threshold in $e^+e^-$ Collisions

    Proceedings of th, International, School of Theoretical Physics

    Acta Physica Polonica　B28　2461-2478　1997/12

  98. New method for exact calculation of green functions in scalar field theory Peer-reviewed

    Yukinari Sumino

    Progress of Theoretical Physics　95　(2)　389-407　1996

    Publisher: Yukawa Institute for Theoretical Physics

    DOI： 10.1143/PTP.95.389 　

    ISSN： 0033-068X

  99. Bern-Kosower rule for scalar QED Peer-reviewed

    K. Daikouji, M. Shino, Y. Sumino

    Physical Review D - Particles, Fields, Gravitation and Cosmology　53　(8)　4598-4615　1996

    DOI： 10.1103/PhysRevD.53.4598 　

    ISSN： 1550-2368 1550-7998

  100. Top-quark mass and isospin breaking in the dynamical symmetry-breaking scenario Peer-reviewed

    T. Asaka, Y. Shobuda, Y. Sumino

    Physical Review D - Particles, Fields, Gravitation and Cosmology　54　(9)　5698-5704　1996

    DOI： 10.1103/PhysRevD.54.5698 　

    ISSN： 1550-2368 1550-7998

    eISSN： 1550-2368

  101. Probing dynamical symmetry breaking using top quark

    T Asaka, Y Shobuda, N Maekawa, T Moroi, Y Sumino

    PROGRESS OF THEORETICAL PHYSICS SUPPLEMENT　123　(123)　151-161　1996

    ISSN： 0375-9687

  102. Review on Physics of $e^+e^- \\to t\\bar$ Near Threshold

    Y. Sumino

    Acta Physica Polonica　B25　1837-1856　1994/10

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    Proceedings of the XXXIV Cracow School of Theoretical Physics

  103. Physics at tt̄ threshold in e+e- collisions Peer-reviewed

    K. Fujii, T. Matsui, Y. Sumino

    Physical Review D　50　(7)　4341-4362　1994

    DOI： 10.1103/PhysRevD.50.4341 　

    ISSN： 0556-2821

  104. Top Quark Pair Production Near Threshold -- Theory and Experiment

    Y. Sumino

    Proceedings of the Workshop on Physics and Experiments with Linear $e^+e^-$ Colliders　439-450　1993/12

  105. Axial-vector-coupling contribution to toponium resonances Peer-reviewed

    H. Murayama, Y. Sumino

    Physical Review D　47　(1)　82-92　1993

    DOI： 10.1103/PhysRevD.47.82 　

    ISSN： 0556-2821

  106. Top-quark pair production near threshold Peer-reviewed

    Y. Sumino, K. Fujii, K. Hagiwara, H. Murayama, C. K. Ng

    Physical Review D　47　(1)　56-81　1993

    DOI： 10.1103/PhysRevD.47.56 　

    ISSN： 0556-2821

  107. Physics near the $t\\bar$ Threshold at Future

    Y. Sumino

    KEK Proceedings　92　(13)　173-196　1992/12

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    Proceedings of the Third Workshop on JLC

  108. Heavy Quark Symmetry

    Y. Sumino

    KEK Proceedings　91-7　137-154　1991/07

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    Proceedings of the Workshop on Physics and Detectors for KEK Asymmetric B-Factory

Show all ︎Show first 5

Misc. 1

  1. 28pRB-6 Progress in Understanding Quark-AntiQuark System Based on Perturbative QCD

    Sumino Yukinari

    Meeting abstracts of the Physical Society of Japan　68　(1)　17-17　2013/03/26

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

Books and Other Publications 1

  1. Linear Collider Physics in the New Millenium

    Editors, K. Fujii, D. Miller, A. Soni

    World Scientific　2005

Presentations 48

  1. Two-loop non-annihilation Hamiltonian for quarkonium Invited

    Yukinari Sumino

    2025/11/20

  2. Two-Loop Quarkonium Hamiltonian in potential-NRQCD Invited

    Yukinari Surnino

    Loopfest XIII, Edmonton, CANADA　2025/05/23

  3. 2 Loop Quarkonium Hamiltonian (Non-annihilation channel) Invited

    Yukinari Sumino

    Loops and Legs 2024, Wittenberg, GERMANY　2024/04/15

  4. On Λ_QCD^2/m renormalons of pole mass and interquark potential

    Takuya Agemura

    KEKPH 2023, KEK, Tsukuba, JAPAN　2023/11/08

  5. Renormalon subtraction in |Vcb| determination

    Yukinari Sumino

    KEK-FF 2023, KEK, Tsukuba, JAPAN　2023/02/10

  6. Renormalons in QCD Invited

    Yukinari Sumino

    KIT Particle Physics Colloquium, Karlsruhe, GERMANY　2022/12/15

  7. クォーコニウム物理量の4次補正計算の現状

    隅野行成

    基研研究会 素粒子物理学の進展２０２２, YITP, Kyoto, JAPAN　2022/08/31

  8. EFT for heavy quarkonium Invited

    Yukinari Sumino

    2021/11/05

  9. Perturbative calculations Invited

    Yukinari Sumino

    Bad Honnef Physics School　2021/07

  10. Top and QCD Invited

    2020/09/24

  11. Precision b-quark mass determination Invited

    Yukinari Sumino

    LCWS2019 (Sendai, Japan)　2019/10/29

  12. A geometric view of loop integral reduction by IBP recurrence relations International-presentation Invited

    隅野 行成

    Frontiers in Mathematical Science Research Workshop (Shang-hai Univ.)　2019/09/27

  13. alpha_s determination from static potential: OPE with renormalon subtraction and lattice QCD International-presentation Invited

    SUMINO Yukinari

    QWG 2019　2019/05/17

  14. Top-quark mass and Yukawa coupling International-presentation Invited

    SUMINO Yukinari

    Higgs Couplings 2018　2018/11/26

  15. Static QCD potential in perturbative QCD and its implication International-presentation Invited

    SUMINO Yukinari

    New Frontiers in QCD 2018　2018/06/13

  16. Understanding Interquark Force and Quark Masses in Perturbative QCD International-presentation Invited

    SUMINO Yukinari

    Structures and Interactions of Heavy Quark Hadrons　2017/03/01

  17. チャーム及びボトムクォーク質量の精密決定 Invited

    隅野 行成

    日本物理学会（大阪大学）　2017/03

  18. On Higgs Potential Non-analytic at the Origin International-presentation Invited

    SUMINO Yukinari

    KEK-PH 2017　2017/02

  19. Koide's formula and family gauge symmetry Invited

    SUMINO Yukinari

    Quarks, Leptons, and Family Gauge Bosons　2016/12

  20. Top and QCD: Current status and future prospect Invited

    ILC合宿　2016/07/23

  21. Computation of Heavy Quarkonium Spectrum in Perturbative QCD International-presentation Invited

    Loops and Legs 2016　2016/04/24

  22. A general aspect of perturbative QCD International-presentation Invited

    IPMUコライダー勉強会: Higer order QCD　2016/02/16

  23. Subtracting IR ambiguity from the static potential International-presentation Invited

    Quarkonium 2014　2014/11/10

  24. A Modern View of Perturbative QCD and Crossings with Mathematics Invited

    「素粒子物理学の進展」　2014/07/28

  25. 現在の視点から見る摂動QCD及び重いクォーコニウム系への応用 Invited

    QCD Club　2014/06/12

  26. Singularities and MZVs in Feynman Loop Integrals Invited

    多重ゼータ値の諸相　2013/07/23

  27. シンポジウム「多様なアプローチによる量子色力学の非摂動論的現象の研究」 Invited

    日本物理学会第６８回年次大会　2013/03/26

  28. Boost-invariant Leptonic Observables and Reconstruction of Parent Particle Mass International-presentation Invited

    Modern Trends in Quantum Chromodynamics　2011/10/03

  29. Boost-invariant Leptonic Observables and Reconstruction of Parent Particle Mass

    LHCが切り拓くテラスケール物理　2011/08/22

  30. Effects of Toponium Resonances in Higgs Search

    LHCが切り拓くテラスケール物理　2011/08/22

  31. 3-loop QCD Potential International-presentation Invited

    Euroflavour 2010　2010/09/08

  32. 3-loop QCD Potential: Computation and Applications International-presentation Invited

    International Workshop on Heavy Quarkonium　2010/05/18

  33. Basics of NRQCD/pNRQCD and Quarkonium Spectroscopy International-presentation

    HEAVY QUARK PHYSICS IN QCD　2009/09/07

  34. Top Quark Physics International-presentation Invited

    Heavy Quarks and Leptons　2008/06/05

  35. Top Production Close To Threshold International-presentation

    K. Hagiwara, H. Yokoya

    IPMU Focus week meeting "Facing LHC Data"　2007/12

  36. Basics of QCD Jets: Angular ordering and radiative phenomena Invited

    Workshop on Particle Physics in the Era of LHC　2007/07

  37. Use of QCD Potential in Determination of alpha_s International-presentation

    Symposium on Precision Calculations　2006/11

  38. OPE analysis of QCD potential and determination of Lambda_MSbar International-presentation

    23rd International Symposium on Lattice Field Theory (Lattice 2005)　2005/06

  39. Top Quark Physics International-presentation Invited

    Physics in LHC era　2004/12

  40. QCD Potential and Quarkonium Spectroscopy International-presentation Invited

    Quarkonium Workshop　2004/10/07

  41. Perturbative QCD Potential and String Tension International-presentation Invited

    13th International Seminar on High Energy Physics (Quarks 2004)　2004/05/24

  42. Heavy Quarkonium Spectroscopy from Perturbative QCD International-presentation

    9th Accelerator and Particle Physics Institute (APPI2004)　2004/02/16

  43. Renormalon Cancellation and Perturbative QCD Potential as a Coulomb+Linear Potential International-presentation

    International Conference on Color Confinement and Hadrons in Quantum Chromodynamics　2003/07

  44. QCD Potential and Heavy Quarkonium Spectroscopy in Perturbative QCD International-presentation

    International Symposium on ``Hadron Spectroscopy, Chiral Symmetry and Relativistic Description of Bound Systems　2003/02

  45. pQCD and bottomonium spectrum International-presentation

    International Workshop on Heavy Quarkonium　2002/11

  46. Top quark and QCD physics at $e^+e^-$ linear colliders: recent progress International-presentation

    International Linear Collider Workshop (LCWS02)　2002/08

  47. Understanding Heavy Quarkonium Systems in Perturbative QCD International-presentation

    International Conference in Quantum Chromodynamics　2002/07

  48. Top Quark Physics at Future Linear Colliders

    日本物理学会・春の分科会　2000/04

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Research Projects 17

  1. 高精度QCD計算のための理論的枠組の構築と現象論的応用

    隅野 行成

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業

    Category: 基盤研究(C)

    Institution: 東北大学

    2023/04/01 - 2026/03/31

  2. 摂動QCDの精密化による高エネルギー精密物理の新展開

    隅野 行成

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業 基盤研究(C)

    Category: 基盤研究(C)

    Institution: 東北大学

    2020/04 - 2023/03

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    本年度はフーリエ変換を用いたリノーマロン除去法(FTRS法)の詳細について研究をまとめ、本論文としてJHEPに発表した。その中では、FTRS法と既知のPV処方との高次での等価性や、log補正の入れ方などを明らかにした。また応用として、Adler関数、Bのsemileptonic崩壊幅、及びHQETのOPEにおける非摂動行列要素を決定した。いずれの場合も理論の期待とよく合致した振る舞いを確認し、その解析の詳細について説明した。Subleadingのリノーマロンまで含めて初めて同時にリノーマロン除去することを実践した。今後多くの物理量のOPEに応用して、QCD効果の理論的な計算精度を上げられると期待できる。 またBのsemileptonic崩壊幅の3ループ補正を含めた理論計算結果を用いて、実験値との比較から小林益川行列要素|Vcb|の決定を行なった。ボトムクォークの1S質量を用いてu=1/2リノーマロンを相殺し、HQETのOPEによりO(1/mb)補正まで含めて解析した。結果はinclusive processから得られたPDGの値とはconsistentだが、exclusive processから得られたPDGの値とはずれた値が得られた。この結果により両者の値の間のtensionはより鮮明になったと考えられる。得られた解析結果は理論的に非常にクリーンな振る舞いを見せており、OPEが全体としてうまく行っていること、理論値のよい収束性と安定性を示している。また、1S質量は従来注目されていなかった固有の不定性を内包していることなどが浮き彫りになった。更には、理論の計算精度を向上させるためには、subleadingのリノーマロンを除去することが必要であることを示した。

  3. 電子・陽電子コライダーにおけるトップクォーク物理の国際的展開 Competitive

    山本 均

    Offer Organization: 日本学術振興会

    System: 科学研究費補助金基盤研究(A)

    2016/04 - 2021/03

  4. 摂動QCDの精密定式化と基礎物理定数の高精度決定 Competitive

    隅野 行成

    Offer Organization: 日本学術振興会

    System: 科学研究費補助金基盤研究(C)

    2017/04 - 2020/03

  5. 有効理論と摂動QCDに基づく閉じ込めの物理 Competitive

    隅野 行成

    Offer Organization: 日本学術振興会

    System: 科学研究費補助金特別研究員奨励費

    2016/12 - 2018/01

  6. 摂動QCDに基づくトップクォークの精密物理 Competitive

    隅野 行成

    Offer Organization: 日本学術振興会

    System: 科学研究費補助金基盤研究(C)

    2014/04 - 2016/03

  7. LHC時代における重いクォークの精密物理 Competitive

    隅野 行成

    Offer Organization: 日本学術振興会

    System: 科学研究費補助金基盤研究(C)

    2011/04 - 2014/03

  8. QCD高次輻射補正とクォーク質量の精密決定 Competitive

    隅野 行成

    Offer Organization: 日本学術振興会

    System: 科学研究費補助金基盤研究(C)

    2008/10 - 2011/03

  9. アトラス実験でのTevミューオンによる余剰次元の発見 Competitive

    田中 礼三郎

    Offer Organization: 日本学術振興会

    System: 科学研究費補助金特定領域研究

    2006/04 - 2008/03

  10. 重いクォーコニウム系の理論的解析と基礎物理定数の高精度決定 Competitive

    隅野 行成

    Offer Organization: 日本学術振興会

    System: 科学研究費補助金基盤研究(C)

    2005/04 - 2008/03

  11. 重いクォーコニウム系の物理量の精密計算と新しい理論的枠組みの構成 Competitive

    隅野 行成

    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 - 2005/03

  12. Study of CP violation on top-quark

    TANAKA Reizaburo, SUMINO Yukinari, NAKANO Itsuo

    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: Okayama University

    2003 - 2005

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    The aim of this research is the study of CP violation and anomalous coupling on top-quark decay at CDF experiment. That will lead to the beyond the Standard Model and some knowledge about the baryogenesis of universe. The study on the mechanism of the top-quark production and decay is especially important since the CDF Run-II is expected to produce a lot of top-quark pair creation. We have developed a method applicable to top-quark semi-leptonic decay although the reconstruction of top-quark spin at hadron collider is not simple. That is called a sine-helicity method, which reconstructs the effective-spin of the top-quark. This method projects lepton direction to the top-quark helicity at top-quark rest system. We have confirmed that the angular distribution of top-quark decay is reproduced that from the polarized top-quark. We have suggested to apply this new top-quark effective-spin for the study of anomalous coupling at top-quark decay vertex. This method is more sensitive to the anomalous coupling than the familiar beam line base and off-diagonal base definition of top-quark spin axis. We have also studied a method using angular correlation between W-boson and a charged particle. We used a likely-method to analyze lepton+four jets events. We have also studied the sensitivity of Tevatron and LHC experiments. And we have gotten the conclusion that this mehod will be promising.

  13. Threshold領域におけるe^+e^-→tt過程の精密計算

    隅野 行成

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業

    Category: 奨励研究(A)

    Institution: 東北大学

    2000 - 2001

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    ^^-私の研究成果は、(1)large-β_0近似で、クォーコニウム1S状態のエネルギーレベルに対するO(α^5_Sm)を計算し、その結果を用いて、将来のe^+e^-線形加速器におけるトップ・クォークの質量の測定精度を調べたこと。(2)renormalon相殺を取り入れた計算では、ボトモニウムのエネルギースペクトルの実験値を、理論計算でよく再現できることを示したこと。(3)renormalon相殺が従来知られていたよりも深いレベルで起こることを示したこと。(4)kinematical fitにより、tt^^- threshold領域で、トップ・クォークの運動量、及び、その崩壊先の粒子の運動量の測定精度が向上することを示したこと、が主なものである。(1)においては、将来のe^+e^-線形加速器のtt^^- threshold領域においてトップ・クォークの質量を高精度で測定するために必要な理論計算を行なった。将来期待される実験精度と比較して、この計算が重要であることを示した。(2)では、従来の常識に反して、O(Λ_<QCD>)renormalonの相殺を取り込んだ計算では、摂動QCDに基づく束縛状態の理論計算で、ボトモニウムのエネルギースペクトルの実験値が再現されることを示した。このような計算方法では、非摂動効果が非常に小さいことを表しており、同じ理論計算に基づく、トップ・クォークの質量決定方法の有効性を保証する。(3)では、摂動QCDの枠内ではO(Λ^4_<QCD>)までエネルギーレベルに含まれるrenormalonが小さくなることを示した。従来見落とされていた寄与を同定し、摂動展開の収束性を向上させる道筋を示した。(4)では、tt^^- threshold領域でシュミレーション解析を行なった。kinematical fitにより、トップ・クォークの崩壊における異常構造因子の測定精度が上がることを示した。

  14. Top quark physics at colliders

    HIKASA Ken-ichi, SUMINO Yukinari, YAMADA Youichi

    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

    2000 - 2001

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    1. Precise determination of the top quark mass may be made by measuring the cross section of the process e^+e^- → tt^^- near threshold. We find that theoretical error in the determination can be made small by using the <MS>^^^- mass instead of the pole mass as the parameter representing the top quark mass. 2. We examine the bottomonium spectrum using higher order perturbative QCD calculation and find that the theory reproduces the data quite well, in contrary to the belief that perturbation theory is not applicable. 3. We study the decay of the top squark in the mass region where the direct decay to the top quark is not kinematically allowed. We calculated the decay to a charm squark a neutralino via flavor-changing neutral current in the supergravity model by solving renormalization group equations. We show that this mode can be dominant when the parameter tan β is large. We further examine the case this mode competes with the charged current decay to a bottom squark and a chargino and propose a method to detect the top squark pair production events at hadron colliders 4. Definition of the mixing matrix is nontrivial at higher orders in perturbation theory. We examine the gauge dependence of the mixing matrix and explicitly calculated the correction in several examples. 5. It is known that the QCD correction for the decay of a Higgs boson to quarks and squarks is rather large. We find that a clever choice of the lowest-order parameter can reduce the size of the correction, leading to more reliable theoretical predictions.

  15. Testing Physics Beyond the Standard Model at Linear Colliders

    HIKASA Ken-ichi, SUMINO Yukinari

    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

    1996 - 1997

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    1.We study three-body decays of charginos in supersymmetry and examine the dependence of the branching ratios on the mass of scalar quarks and leptons. We find that the ratio of electronic and tauonic branching ratio can have a large deviation from one if the chargino is gaugino-like. This measurement should be useful to obtain information on slepton masses and therefore a key to the mechanism of supersymmetry breaking. 2.In the gauge mediated scenario of supersymmetry breaking, superparticles eventually decay to a gravitino, which has a spin 3/2. We develop a formalism to calculate helicity amplitudes for processes containing spin 3/2 particles. Some decay processes with a gravitino in the initial or final state are calculated. 3.We develop a compute code which generates programs to calculate cross sections for superparticle production processes (with two or three body final states) in e^+e^- collisions. 4.We study the effect of final state interaction due to gluon exchange on the energy and angular distributions of final leptons in top production in e^+e^- collisions. The distributions change by ten percent due to this effect. We also calculate the second order correction to the QCD potential which is related to the top production process. We find that the result changes according to whether the renormalization group equation is solved in the momentum or the configuration space. This ambiguity gives a 6% error to the cross section. 5.We apply the N/D method developed for the strongly interacting Higgs sector to pipi scattering and find a result suggestive of the existence of the sigma meson.

  16. PARTICLE PHYSICS AT LINEAR COLLIDERS

    HIKASA Ken-ichi, SUMINO Yukinari

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

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

    Institution: TOHOKU UNIVERSITY

    1994 - 1995

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    1.We calculate =(alpha_s) QCD correction to pair production of colored scalar particles (like squarks) in e^+e^- annihilation and compared it with fermion pair production. We find that both total and three-jet rate have significant dependence on the spin of the particle. 2.We study the final state interaction in the reaction e^+e^-*W^+W^- in the presence of strong symmetry-breaking interactions. Two formulations of chiral Lagrangian and a model with a vector resonance are used. We find that the effect of a vector resonance mass up to 2,000-2,500 GeV may be detected at a linear collider of 500 GeV center-or-mass energy. 3.If the top quark mass is generated by an unknown strong interaction, we find that the effect of the interaction is visible in top pair production by photon-photon collisions at linear colliders. 4.The Bern-Kosower rule has been known only up to one-loop. We extend it to arbitrary number of loops in scalar quantum electrodynamics. 5.We construct a new set of equations for Green functions in scalar field theory. Un-like Schwinger-Dyson equations, the new equations form a closed set, which may be solvable with no approximation.

  17. 次世代e^+e^-型加速器における標準模型の精密検証可能性

    隅野 行成

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業

    Category: 奨励研究(A)

    Institution: 東北大学

    1994 - 1994

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    隅野はe^+e^-→tt^^-のthreshold近傍での断面積に対するnext-to-leading orderのQCD輻射補正を全て計算し、全断面積及び微分断面積を補正を含めて再解析した。final-state-interactionの効果でトップ・クォークの運動量分布が大きく変更を受けることが分かった。一方で、トップ・クォークの前後方非対称性に対する効果は小さいことが分かった。また、全断面積に対するfinal-state-interactionの効果は正確に相殺して、ゼロになることが分かった。更にこの結果を用いて、将来e^+e^-線形加速器で期待される実験環境を想定した、tt^^--threshold領域における物理の定量的な研究を行なった。m_t=150GeVと170GeVのそれぞれの場合に実験方針を提唱した。そこでは、色々な物理的パラメータの精密測定のためには、全断面積と微分断面積の同時測定が重要であることを指摘した。例えばm_t=150GeVの場合には、各1fb^<-1>、11点のエネルギー走査では、Δm_t=0.2GeV、Δα_5=0.005の統計誤差でトップ・クォークの質量と強い相互作用の結合定数が測れることが分かった。また、ヒッグスが軽い場合には湯川相互作用も測定可能であることも示した。最適化されたエネルギーでの100 fb^<-1>相当のトップ・クォークの運動量分布の測定からは、Δα_5=0.0015及び、トップの崩壊幅の精度はΔT_t/T_t=0.04が期待されることを示した。また、tt^^--threshold領域で、トップ・クォークの前後方非対称性の測定からもα_5とT_tの独立な情報を得られることが示せた。

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Social Activities 4

  1. (出前授業等)模擬授業「素粒子の世界像」

    2025/10/16 - 2025/10/16

  2. (出前授業等)大学出張講義「素粒子の世界像」

    大学出張講義

    2023/10/20 -

  3. (出前授業等)大学模擬講義「素粒子の世界像」

    大学模擬講義

    2021/10/21 -

  4. 「夏休み大学探検」（仙台市企画・中学生対象）

    2004/07 -

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    中学生が夏休みに大学を訪れ、体験学習講座を受講

Academic Activities 2

  1. (非常勤講師等) 場の量子論による束縛状態理論の構成と高精度計算 [集中講義]

    2024/06/19 - 2024/06/21

  2. Round Table "Toponium" (chair)

    2025/11/20 -

    Activity type: Academic society, research group, etc.