Study of Lattice QCD by numerical simulations including dynamical quark effects
通过包括动态夸克效应在内的数值模拟研究晶格 QCD
基本信息
- 批准号:11640294
- 负责人:
- 金额:$ 1.86万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for Scientific Research (C)
- 财政年份:1999
- 资助国家:日本
- 起止时间:1999 至 2002
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Including dynamical quark loop effects in lattice QCD simulations is one of the most important problem to make quantitative study of strong interaction and to obtain phenomenologically important hadron matrix elements. In fact it has been shown that in the quenched approximation where the dynamical quark loop effect is neglected the evaluated hadron mass spectrums deviate from experimental values by about 10%. For N_f = 2 QCD where the dynamical u and d quark effects are taken into account we have made large scale simulations with the exact hybrid Monte Carlo (HMC) simulation algorithm. It has been shown that a large part of the deviation in hadron mass spectrum observed in the quenched approximation disappears with the inclusion of N_f = 2 dynamical quark effect. In the real world, however, there are three light quarks and it is important to make simulations including the s quark loop effect. For this purpose we have developed efficient exact simulation algorithm for odd number of O(a) improved Wilson fermions. We have made first realistic N_f = 3 QCD simulation with O(a) improved Wilson fermions and estimated mass spectrum for various hadrons, from which fundamental lattice QCD parameters such as lattice spacing and quark masses are determined.
在晶格QCD模拟中包括动态夸克环效应是对强相互作用进行定量研究并获得现象学重要的强子基质元素的最重要问题之一。实际上,已经表明,在淬灭的近似中,动态夸克环效应被忽略了评估的强子质谱与实验值偏离约10%。对于N_F = 2 QCD,其中考虑了动态U和D夸克效应,我们已经使用精确的混合蒙特卡洛(HMC)模拟算法进行了大规模模拟。已经表明,随着n_f = 2动态夸克效应的包含,在淬灭近似中观察到的强子质谱中的大部分偏差消失。但是,在现实世界中,有三个轻夸克,进行模拟包括s夸克循环效应很重要。为此,我们开发了有效的精确仿真算法,以改善o(a)改进的威尔逊费米子。我们首先实现了n_f = 3 QCD模拟,o(a)改进了威尔逊·费米子(A)的各种载体,并估计了质谱,从中确定了基本的晶格QCD参数,例如晶格间距和夸克质量。
项目成果
期刊论文数量(69)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
A. Ali Khan: "Kaon B parameter from quenched domain-wall QCD"Physical Review. D64, 114506. 1-21 (2001)
A. Ali Khan:“来自淬火域壁 QCD 的 Kaon B 参数”物理评论。
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
T.Manke: "Quark effects on quarkonia"Physical Review D. 62・11. 114508-1-13 (2000)
T.Manke:“夸克对夸克尼亚的影响”物理评论D. 62・11(2000)。
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
A.Ali Khan: "Equation of state in finite-temperature QCD with two flavors of improved Wilson quarks"Physical Review. D64. 074510-1-074510-17 (2001)
A.Ali Khan:“有限温度 QCD 中的状态方程,具有两种改进的威尔逊夸克”物理评论。
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
Y. Namekawa: "Thermodynamics of SU(3) gauge theory on anisotropic lattices"Physical Review. D64, 074507. 1-13 (2001)
Y. Namekawa:“各向异性晶格上 SU(3) 规范理论的热力学”物理评论。
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
S. Aoki: "Nuclear decay matrix elements from lattice QCD"Physical Review D. (発表予定).
S. Aoki:“来自晶格 QCD 的核衰变矩阵元素”物理评论 D.(待提交)。
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
{{
item.title }}
{{ item.translation_title }}
- DOI:
{{ item.doi }} - 发表时间:
{{ item.publish_year }} - 期刊:
- 影响因子:{{ item.factor }}
- 作者:
{{ item.authors }} - 通讯作者:
{{ item.author }}
数据更新时间:{{ journalArticles.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ monograph.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ sciAawards.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ conferencePapers.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ patent.updateTime }}
OKAWA Masanori其他文献
OKAWA Masanori的其他文献
{{
item.title }}
{{ item.translation_title }}
- DOI:
{{ item.doi }} - 发表时间:
{{ item.publish_year }} - 期刊:
- 影响因子:{{ item.factor }}
- 作者:
{{ item.authors }} - 通讯作者:
{{ item.author }}
{{ truncateString('OKAWA Masanori', 18)}}的其他基金
Study of twisted space-time reduced model in the large N limit
大N极限下扭曲时空简化模型研究
- 批准号:
23540310 - 财政年份:2011
- 资助金额:
$ 1.86万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Study of lattice QCD by large scale numerical simulations including dynamical quark effects
通过大规模数值模拟(包括动态夸克效应)研究晶格 QCD
- 批准号:
15540279 - 财政年份:2003
- 资助金额:
$ 1.86万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Lattice QCD Study of Hadronic Matrix Elements by Numerical Simulations
强子矩阵元的晶格 QCD 数值模拟研究
- 批准号:
08640404 - 财政年份:1996
- 资助金额:
$ 1.86万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Lattice QCD calculation of Hadronic matrix element with dynamical quark effects
具有动力夸克效应的强子矩阵元的格子QCD计算
- 批准号:
05640363 - 财政年份:1993
- 资助金额:
$ 1.86万 - 项目类别:
Grant-in-Aid for General Scientific Research (C)
相似海外基金
Study of lattice QCD by large scale numerical simulations including dynamical quark effects
通过大规模数值模拟(包括动态夸克效应)研究晶格 QCD
- 批准号:
15540279 - 财政年份:2003
- 资助金额:
$ 1.86万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Research in lattice QCD via large scale numerical simulations
通过大规模数值模拟研究晶格 QCD
- 批准号:
13135204 - 财政年份:2001
- 资助金额:
$ 1.86万 - 项目类别:
Grant-in-Aid for Scientific Research on Priority Areas