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Precision physics of heavy quarks in the LHC era

Research Project

Project/Area Number 23540281
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Particle/Nuclear/Cosmic ray/Astro physics
Research InstitutionTohoku University

Principal Investigator

SUMINO Yukinari  東北大学, 理学(系)研究科(研究院), 准教授 (80260412)

Project Period (FY) 2011 – 2013
Project Status Completed (Fiscal Year 2013)
Budget Amount *help
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2013: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2012: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2011: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
KeywordsLHC / heavy quark / top quark / spectroscopy / LHC / LHC実験 / ハドロンコライダー / 質量測定 / 高精度測定 / ヒッグス粒子 / 高次輻射補正
Research Abstract

We proposed the "weight function method" developed for precise measurements of particle's properties at LHC experiments. The advantages are as follows: (1)Only the energy distribution of a lepton included in the decay products is used, hence dependence on uncertainties of hadronization models and intial-state radiations is low; (2)Ideally the method is independent of particle's velocity distribution, hence effects of uncertainties in parton distribution functions and initial-state radiation are low. We first showed applicability of the method to the Higgs mass determination. Now we are developing method for reconstructing the top quark mass.
We also developed algorithms for computing higher-order radiative corrections. As an application, we completed computation of the next-to-next-to-next-to-leading order corrections to the heavy quarkonium spectrum.

Report

(4 results)
  • 2013 Annual Research Report   Final Research Report ( PDF )
  • 2012 Research-status Report
  • 2011 Research-status Report
  • Research Products

    (18 results)

All 2014 2013 2012 2011 Other

All Journal Article (8 results) (of which Peer Reviewed: 7 results) Presentation (7 results) (of which Invited: 4 results) Remarks (3 results)

  • [Journal Article] Perturbative heavy quarkonium spectrum at next-to-next-to-next-to-leading order2014

    • Author(s)
      Y. Kiyo, Y. Sumino
    • Journal Title

      Physics Letters

      Volume: B730 Pages: 76-80

    • DOI

      10.1016/j.physletb.2014.01.030

    • Related Report
      2013 Annual Research Report 2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] Estimate of 4-loop Pole-MSbar Mass Relation from Static QCD Potential2014

    • Author(s)
      Y. Sumino
    • Journal Title

      Phys.Lett

      Volume: B728 Pages: 73-76

    • DOI

      10.1016/j.physletb.2013.11.022

    • Related Report
      2013 Annual Research Report 2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] Algorithms to evaluate multiple sums for loop computations2013

    • Author(s)
      C. Anzai, Y. Sumino
    • Journal Title

      Journal of Mathematical Physics

      Volume: 54 Issue: 3 Pages: 33501-33501

    • DOI

      10.1063/1.4795288

    • Related Report
      2013 Final Research Report 2012 Research-status Report
    • Peer Reviewed
  • [Journal Article] Measurement of physical parameters with a weight function method2013

    • Author(s)
      S. Kawabata, Y. Shimizu, Y. Sumino, H. Yokoya
    • Journal Title

      JHEP

      Volume: 1308 Issue: 8 Pages: 129-159

    • DOI

      10.1007/jhep08(2013)129

    • Related Report
      2013 Annual Research Report 2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] Top quark precision physics at the International Linear Collider2013

    • Author(s)
      D. Asner, A. Hoang, Y. Kiyo, R. Poschl, Y. Sumino, M. Vos
    • Journal Title

      Prepared for a book on ILC, a shortened version from TDR for the ILC (arXiv:1307.8265[hep-ex])

      Pages: 1-17

    • Related Report
      2013 Final Research Report
  • [Journal Article] Boost-invariant leptonic observables and reconstruction of parent particle mass2012

    • Author(s)
      Sayaka Kawabata, Yasuhiro Shimizu, Yukinari Sumino, Hiroshi Yokoya
    • Journal Title

      Physics Letters B

      Volume: 710 Issue: 4-5 Pages: 658-664

    • DOI

      10.1016/j.physletb.2012.03.050

    • Related Report
      2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] Boost-invariant Leptonic Observables and Reconstruction of Parent Particle Mass2012

    • Author(s)
      Sayaka Kawabata, Yasuhiro Shimizu, Yukinari Sumino, Hiroshi Yokoya
    • Journal Title

      Physics Letters

      Volume: B710 Pages: 658-664

    • Related Report
      2011 Research-status Report
    • Peer Reviewed
  • [Journal Article] Measuring the top Yukawa coupling at the ILC at sqrt{s}=500GeV2011

    • Author(s)
      Ryo Yonamine, et al
    • Journal Title

      Physical Review D

      Volume: 84 Issue: 1 Pages: 14033-14033

    • DOI

      10.1103/physrevd.84.014033

    • Related Report
      2013 Final Research Report
    • Peer Reviewed
  • [Presentation] Singularities and Multiple Zeta Values in Feynman Loop Integrals2013

    • Author(s)
      Y. Sumino
    • Organizer
      RIMS 研究集会「多重ゼータ値の諸相」
    • Place of Presentation
      京都数理解析研究所
    • Year and Date
      2013-07-23
    • Related Report
      2013 Annual Research Report 2013 Final Research Report
    • Invited
  • [Presentation] 摂動QCDによるクォーク・反クォーク対系の理解の進展2013

    • Author(s)
      Y. Sumino
    • Organizer
      日本物理学会第68回年次大会シンポジウム
    • Place of Presentation
      広島大学
    • Year and Date
      2013-03-28
    • Related Report
      2013 Final Research Report
    • Invited
  • [Presentation] 摂動QCDによるクォーク・反クォーク対系の理解の進展2013

    • Author(s)
      隅野行成
    • Organizer
      日本物理学会第68回年次大会シンポジウム講演
    • Place of Presentation
      広島大学東広島キャンパス
    • Related Report
      2012 Research-status Report
    • Invited
  • [Presentation] Boost Invariant Leptonic Observables and Reconstruction of Parent Particle Mass2011

    • Author(s)
      Y. Sumino
    • Organizer
      Modern Trends in Quantum Chromodynamics
    • Place of Presentation
      DESY Zeuthen, Germany
    • Year and Date
      2011-10-05
    • Related Report
      2013 Final Research Report
    • Invited
  • [Presentation] Boost Invariant Leptonic Observables and Reconstruction of Parent Particle Mass2011

    • Author(s)
      Y. Sumino
    • Organizer
      「LHC が切り拓くテラスケール物理」研究会講演
    • Place of Presentation
      東京大学
    • Year and Date
      2011-08-22
    • Related Report
      2013 Final Research Report
  • [Presentation] Boost-invariant Leptonic Observables and Reconstruction of Parent Particle Mass

    • Author(s)
      Yukinari Sumino
    • Organizer
      「LHCが切り拓くテラスケール物理」
    • Place of Presentation
      東京大学
    • Related Report
      2011 Research-status Report
  • [Presentation] Boost-invariant Leptonic Observables and Reconstruction of Parent Particle Mass

    • Author(s)
      Yukinari Sumino
    • Organizer
      "Modern Trends in Quantum Chromodynamics"(招待講演)
    • Place of Presentation
      ドイツ ベルリン DESY研究所
    • Related Report
      2011 Research-status Report
  • [Remarks] 集中講義, 於ドイツ・カールスルーエ大学" Understanding Interquark Force and Quark Masses in Perturbative QCD, "隅野行成, 2013.11.27-12.5.

    • Related Report
      2013 Final Research Report
  • [Remarks] 集中講義, 於京都大学「摂動QCDに基づくクォーク間力とクォーク質量の理解」, 隅野行成, 2013.7.8-10.

    • Related Report
      2013 Final Research Report
  • [Remarks] 集中講義, 於立教大学"Understanding Heavy Quark-AntiQuark System by Perturbative QCD, "隅野行成, 2012.11.29-30.

    • Related Report
      2013 Final Research Report

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Published: 2011-08-05   Modified: 2019-07-29  

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