Nucleon isovector tensor charge from lattice QCD using chiral fermions

doi:10.1103/PhysRevD.101.094501

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	Nucleon isovector tensor charge from lattice QCD using chiral fermions
	Horkel, Derek ; Bi, Yujiang 2; Constantinou, Martha ; Draper, Terrence ; Liang, Jian ; Liu, Keh-Fei ; Liu, Zhaofeng 2,4; Yang, Yi-Bo
刊名	PHYSICAL REVIEW D
	2020
卷号	101 期号:9 页码:94501
关键词	ANOMALOUS DIMENSION PHYSICS
ISSN号	2470-0010
DOI	10.1103/PhysRevD.101.094501
英文摘要	In this work we present the isovector flavor combination for the nucleon tensor charge extracted from lattice QCD simulations using overlap fermions on N-f = 2 + 1 domain-wall configurations. The pion mass dependence is studied using six valence quark masses, each reproducing a value for the pion mass in the valence sector between 147 and 330 MeV. We investigate and eliminate systematic uncertainties due to contamination by excited states, by employing several values for the source-sink separation that span from I to 1.6 fm. We apply a chiral extrapolation in the valence sector using a quadratic and a logarithmic term to fit the pion mass dependence, which describes well the lattice data. The lattice matrix element is renormalized nonperturbatively, and the final result is g(T) = 1.096(30) in the (MS) over bar scheme at a renormalization scale of 2 GeV.
学科主题	Astronomy & Astrophysics ; Physics
语种	英语
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/27042]
专题	理论物理研究所_理论物理所1978-2010年知识产出
作者单位	1.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China 2.Temple Univ, Dept Phys, Philadelphia, PA 19122 USA 3.Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China 4.Univ Kentucky, Dept Phys & Astron, Lexington, KY 40506 USA 5.Univ Chinese Acad Sci, Sch Phys, Beijing 100049, Peoples R China 6.Michigan State Univ, Dept Phys & Astron, E Lansing, MI 48824 USA
推荐引用方式 GB/T 7714	Horkel, Derek,Bi, Yujiang,Constantinou, Martha,et al. Nucleon isovector tensor charge from lattice QCD using chiral fermions[J]. PHYSICAL REVIEW D,2020,101(9):94501.
APA	Horkel, Derek.,Bi, Yujiang.,Constantinou, Martha.,Draper, Terrence.,Liang, Jian.,...&Yang, Yi-Bo.(2020).Nucleon isovector tensor charge from lattice QCD using chiral fermions.PHYSICAL REVIEW D,101(9),94501.
MLA	Horkel, Derek,et al."Nucleon isovector tensor charge from lattice QCD using chiral fermions".PHYSICAL REVIEW D 101.9(2020):94501.