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Nucleon isovector scalar charge from overlap fermions

文献类型：期刊论文

作者Liu, Liuming1,2; Chen, Ting3; Draper, Terrence4; Liang, Jian5,6; Liu, Keh-Fei4; Wang, Geng4; Yang, Yi-Bo7,8,9
刊名PHYSICAL REVIEW D
出版日期2021-11-09
卷号104期号:9页码:10
ISSN号2470-0010
DOI10.1103/PhysRevD.104.094503
通讯作者Liu, Liuming(liuming@impcas.ac.cn) ; Liang, Jian(jianliang@scnu.edu.cn) ; Liu, Keh-Fei(liu@g.uky.edu) ; Yang, Yi-Bo(ybyang@mail.itp.ac.cn)
英文摘要We calculate the nucleon isovector scalar charge in lattice QCD using overlap fermions on five ensembles of gauge configurations generated by the RBC/UKQCD collaboration using the domain-wall quark action with 2 + 1 dynamical flavors. The five ensembles cover five pion masses, m(pi) approximate to 139, 171, 302, 337 and 371 MeV, and four lattice spacings, a approximate to 0.06, 0.08, 0.11 and 0.14 fm. Three to six valence quark masses are computed on each ensemble to investigate the pion mass dependence. The extrapolation to the physical pion mass, continuum and infinite volume limits is obtained by a global fit of all data to a formula originated from partially quenched chiral perturbation theory. The excited-states contamination is carefully analyzed with 3-5 sink-source separations and multi-state fits. Our final result, in the (MS) over bar scheme at 2 GeV, is g(S)(u-d) = 0.94(10)(stat)(8)(sys), where the first error is the statistical error and the second is the systematic error.
WOS关键词QUARKS
资助项目Strategic Priority Research Program of Chinese Academy of Sciences[XDB34030301] ; CAS Interdisciplinary Innovation Team program ; Guangdong Provincial Key Laboratory of Nuclear Science[2019B121203010] ; GuangdongMajor Project of Basic and Applied BasicResearch[2020B0301030008] ; Science and Technology Program of Guangzhou[2019050001] ; U.S. DOE[DE-SC0013065] ; DOE[DE-AC0506OR23177] ; Office of Science of the U.S. Department of Energy[DE-AC05-00OR22725] ; National Science Foundation[ACI-1053575] ; Office of Science of the U.S. Department of Energy
WOS研究方向Astronomy & Astrophysics ; Physics
语种英语
WOS记录号WOS:000718436200003
出版者AMER PHYSICAL SOC
资助机构Strategic Priority Research Program of Chinese Academy of Sciences ; CAS Interdisciplinary Innovation Team program ; Guangdong Provincial Key Laboratory of Nuclear Science ; GuangdongMajor Project of Basic and Applied BasicResearch ; Science and Technology Program of Guangzhou ; U.S. DOE ; DOE ; Office of Science of the U.S. Department of Energy ; National Science Foundation ; Office of Science of the U.S. Department of Energy
源URL[http://119.78.100.186/handle/113462/139978]  
专题中国科学院近代物理研究所
通讯作者Liu, Liuming; Liang, Jian; Liu, Keh-Fei; Yang, Yi-Bo
作者单位1.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Peking Univ, Sch Phys, Beijing 100871, Peoples R China
4.Univ Kentucky, Dept Phys & Astron, Lexington, KY 40506 USA
5.South China Normal Univ, Inst Quantum Matter, Glumgclong Prov Key Lab Nucl Sci, Guangzhou 510006, Peoples R China
6.South China Normal Univ, Southern Nucl Sci Comp Ctr, Guangdong Hong Kong Joint Lab Quantum Matter, Guangzhou 510006, Peoples R China
7.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China
8.UCAS, Sch Fundamental Phys & Math Sci, Hangzhou Inst Adv Study, Hangzhou 310024, Peoples R China
9.Int Ctr Theoret Phys Asia Pacific, Beijing, Peoples R China
推荐引用方式
GB/T 7714		 Liu, Liuming,Chen, Ting,Draper, Terrence,et al. Nucleon isovector scalar charge from overlap fermions[J]. PHYSICAL REVIEW D,2021,104(9):10.
APA Liu, Liuming.,Chen, Ting.,Draper, Terrence.,Liang, Jian.,Liu, Keh-Fei.,...&Yang, Yi-Bo.(2021).Nucleon isovector scalar charge from overlap fermions.PHYSICAL REVIEW D,104(9),10.
MLA Liu, Liuming,et al."Nucleon isovector scalar charge from overlap fermions".PHYSICAL REVIEW D 104.9(2021):10.

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来源：近代物理研究所

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