New Applicant scheme in Theoretical Particle Physics.

理论粒子物理学的新申请人方案。

• 批准号: ST/N005872/1
• 负责人: Craig McNeile
• 金额: $ 0.26万
• 依托单位: Plymouth University
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2015
• 资助国家: 英国
• 起止时间: 2015 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=ST%2FN005872%2F1
• 关键词: New; Applicant; scheme; Theoretical; Particle

Lattice QCD calculations are now producing physical results witherrors at below the few percent level for some quantities. Thereare some quantities that require so called disconnected pieces to be calculated, wherethe dynamics between quarks are solely due to gluons. It is currentlya hot topic in lattice QCD to accurately compute physical quantitiesthat involve disconnected diagrams, unfortunately these arecomputationally expensive. I propose to develop some novel algorithmsto compute these disconnected diagrams, which will be computationally cheaper,and thus help reduce the error on physical quantities.

晶格QCD计算现在产生的物理结果在某些数量的误差低于几个百分点的水平。有一些量需要计算所谓的不连接块，其中夸克之间的动力学完全是由胶子引起的。如何准确地计算不连通图的物理量是目前晶格量子力学中的一个热点问题，但这些物理量的计算成本很高。我建议开发一些新的算法来计算这些不相连的图，这将是计算成本更低，从而有助于减少物理量的误差。

项目成果

Numerical experiments using deflation with the HISQ action

使用 HISQ 动作进行紧缩的数值实验

• DOI: 10.1051/epjconf/201817514016
• 发表时间: 2018
• 期刊: EPJ Web of Conferences
• 作者: Davies C

Hadronic-vacuum-polarization contribution to the muon’s anomalous magnetic moment from four-flavor lattice QCD

强子真空极化对四味晶格 QCD 的 μ 子反常磁矩的贡献

• DOI: 10.1103/physrevd.101.034512
• 发表时间: 2020
• 期刊: Physical Review D
• 影响因子: 5
• 作者: Davies, C. T. H.;DeTar, C.;El-Khadra, A. X.;Gámiz, E.;Gottlieb, Steven;Hatton, D.;Kronfeld, A. S.;Laiho, J.;Lepage, G. P.;Liu, Yuzhi
• 通讯作者: Liu, Yuzhi

Investigating Some Technical Improvements to Glueball Calculations

• DOI: 10.22323/1.251.0102
• 发表时间: 2015-11
• 作者: B. Lucini;C. McNeile;A. Rago

Hadronic-vacuum-polarization contribution to the muon's anomalous magnetic moment from four-flavor lattice QCD

四味晶格 QCD 的强子真空极化对 μ 子反常磁矩的贡献

• DOI: 10.48550/arxiv.1902.04223
• 发表时间: 2019
• 作者: Davies C

$B_c$ decays from highly improved staggered quarks and NRQCD

$B_c$ 因高度改进的交错夸克和 NRQCD 而衰减

• DOI: 10.48550/arxiv.1611.01987
• 发表时间: 2016
• 期刊: arXiv e-prints
• 作者: Colquhoun Brian