QCD higher-order radiative corrections and precision determinations of quark masses

QCD 高阶辐射校正和夸克质量的精确测定

• 批准号: 20540246
• 负责人: SUMINO Yukinari
• 金额: $ 2.41万
• 依托单位: Tohoku University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2008
• 资助国家: 日本
• 起止时间: 2008 至 2010
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-20540246/
• 关键词: 素粒子論; QCD; クォーク質量; 物理定数; QCDポテンシャル; フェルミオン質量; トップクォーク; 輻射補正; 束縛状態

Quarks are elementary particles which reside in atomic nuclei. In this research project, we performed precise theoretical computations for explaining the nature of the physical systems composed by a quark and its anti-particle. In particular, we completed computation of the interquark force which has been demanded for more than a decade. The result has a lot of applications and has already been applied to preliminary determinations of quark masses and other physical parameters. Furthermore, we constructed a theoretical framework which is necessary for determining the top quark mass accurately at the current LHC experiment.

夸克是存在于原子核中的基本粒子。在这个研究项目中，我们进行了精确的理论计算，以解释由夸克及其反粒子组成的物理系统的性质。特别是，我们完成了夸克间力的计算，这已经要求了十多年。这一结果有很大的应用价值，并已用于夸克质量和其它物理参数的初步测定。此外，我们建立了一个理论框架，这是必要的，在当前的LHC实验准确地确定顶夸克质量。

项目成果

Static QCD Potential at Three-Loop Order

• DOI: 10.1103/physrevlett.104.112003
• 发表时间: 2010-03-19
• 期刊: PHYSICAL REVIEW LETTERS
• 影响因子: 8.6
• 作者: Anzai, C.;Kiyo, Y.;Sumino, Y.
• 通讯作者: Sumino, Y.

Static QCD Potential at 3-loop Order

3 环阶静态 QCD 电势

• 发表时间: 2010
• 作者: 相馬充;谷川清隆;Nobuyuki Ishibashi;Y.Sumino;谷川清隆,渡辺瑞穂子;Y. Sumino
• 通讯作者: Y. Sumino

Violation of Casimir Scaling for Static QCD Potential at Three-loop

三环静态 QCD 势违反卡西米尔标度

• 发表时间: 2010
• 期刊: Nuclear Physics
• 作者: C. Anzai;Y. Kiyo;Y. Sumino
• 通讯作者: Y. Sumino

Violation of Casimir Scaling for Static QCD Potential at Three-loop Order

• DOI: 10.1016/j.nuclphysb.2010.05.012
• 发表时间: 2010-04
• 期刊: Nuclear Physics
• 作者: C. Anzai;Y. Kiyo;Y. Sumino

Bound-state effects on kinematical distributions of top quarks at hadron colliders

• DOI: 10.1007/jhep09(2010)034
• 发表时间: 2010-07
• 期刊: Journal of High Energy Physics
• 影响因子: 5.4
• 作者: Y. Sumino;H. Yokoya