Helicity-dependent distribution of strange quarks in the proton from nonlocal chiral effective theory

doi:10.1103/PhysRevD.105.094007

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	Helicity-dependent distribution of strange quarks in the proton from nonlocal chiral effective theory
	He, Fangcheng ; Ji, Chueng-Ryong ; Melnitchouk, W.; Salamu, Y.; Thomas, A. W.; Wang, P.; Wang, X. G.
刊名	PHYSICAL REVIEW D
	2022
卷号	105 期号:9 页码:94007
关键词	STRUCTURE FUNCTIONS G(1)(P) DEEP-INELASTIC SCATTERING STRUCTURE FUNCTIONS G(2) CLOUDY BAG MODEL PERTURBATION-THEORY POLARIZED HE-3 BETA-DECAY SPIN ASYMMETRY NUCLEON
ISSN号	2470-0010
DOI	10.1103/PhysRevD.105.094007
英文摘要	The helicity-dependent strange quark distribution in the proton, As, is calculated in a nonlocal chiral SU(3) effective field theory. The hadronic proton to meson plus octet or decuplet baryon splitting functions are derived at the one-loop level, with loop integrals rendered finite by correlation functions introduced in the nonlocal Lagrangian. Within the convolution framework, the proton strange helicity distribution is obtained using spin-flavor symmetry to constrain the input valence quark distributions in the hadronic intermediate states. The polarized strange quark distribution is found to be quite small, with the lowest moment of As negative, but consistent with recent global QCD analyses.
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/311006/27769]
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.Thomas, A. W.; Wang, X. G.] Univ Adelaide, Dept Phys, ARC Ctr Dark Matter Particle Phys, Adelaide, SA 5005, Australia 2.Wang, P.] Univ Chinese Acad Sci, Coll Phys Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, CAS Key Lab Theoret Phys, Inst Theoret Phys, Beijing 100190, Peoples R China 4.North Carolina State Univ, Dept Phys, Raleigh, NC 27695 USA 5.Melnitchouk, W.] Jefferson Lab, Newport News, VA 23606 USA 6.Salamu, Y.] Kashi Univ, Sch Phys & Elect Engn, Kashi 844000, Xinjiang, Peoples R China 7.Thomas, A. W.; Wang, X. G.] Univ Adelaide, Dept Phys, CSSM, Adelaide, SA 5005, Australia 8.Wang, P.] Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	He, Fangcheng,Ji, Chueng-Ryong,Melnitchouk, W.,et al. Helicity-dependent distribution of strange quarks in the proton from nonlocal chiral effective theory[J]. PHYSICAL REVIEW D,2022,105(9):94007.
APA	He, Fangcheng.,Ji, Chueng-Ryong.,Melnitchouk, W..,Salamu, Y..,Thomas, A. W..,...&Wang, X. G..(2022).Helicity-dependent distribution of strange quarks in the proton from nonlocal chiral effective theory.PHYSICAL REVIEW D,105(9),94007.
MLA	He, Fangcheng,et al."Helicity-dependent distribution of strange quarks in the proton from nonlocal chiral effective theory".PHYSICAL REVIEW D 105.9(2022):94007.