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The x-dependent helicity distributions for valence quarks in nucleons
Ma BQ(马伯强); MA, BQ
1996
发表期刊PHYSICS LETTERS B
卷号375期号:1-4页码:#REF!
通讯作者Ma, BQ (reprint author), ACAD SINICA,INST HIGH ENERGY PHYS,POB 9184,BEIJING 100039,PEOPLES R CHINA.
文章类型Article
摘要We derive simple relations between the polarized and unpolarized valence quark distributions in a light-cone SU(6) quark-spectator model for nucleons. The explicit x-dependent Wigner rotation effect for the light-flavor quarks is calculated, It is shown that the mass difference between the scalar and vector spectators could reproduce the up and down valence quark asymmetry that accounts for the observed ratio F-2(n)/F-2(p). The proton, neutron, and deuteron polarization asymmetries, A(1)(p), A(1)(n), and A(1)(d), are in agreement with the available data by taking into account the Wigner rotation effect. The calculated x-dependent helicity distributions of the up and down valence quarks are compared with the recent results from semi-inclusive hadron asymmetries in polarized deep inelastic scattering by the Spin Muon Collaboration.
学科领域Physics
DOI10.1016/0370-2693(96)00208-0
收录类别SCI
WOS类目Physics, Multidisciplinary
WOS记录号WOS:A1996UP26300048
引用统计
被引频次:85[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/227540
专题理论物理室
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GB/T 7714
Ma BQ,MA, BQ. The x-dependent helicity distributions for valence quarks in nucleons[J]. PHYSICS LETTERS B,1996,375(1-4):#REF!.
APA 马伯强,&MA, BQ.(1996).The x-dependent helicity distributions for valence quarks in nucleons.PHYSICS LETTERS B,375(1-4),#REF!.
MLA 马伯强,et al."The x-dependent helicity distributions for valence quarks in nucleons".PHYSICS LETTERS B 375.1-4(1996):#REF!.
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