The x-dependent helicity distributions for valence quarks in nucleons

	The x-dependent helicity distributions for valence quarks in nucleons
	Ma BQ(马伯强); MA, BQ
刊名	PHYSICS LETTERS B
	1996
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.
英文摘要	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.
学科主题	Physics
类目[WOS]	Physics, Multidisciplinary
收录类别	SCI
WOS记录号	WOS:A1996UP26300048
公开日期	2016-05-03
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/227540]
专题	高能物理研究所_理论物理室
推荐引用方式 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!.