Evidence for substantial charge symmetry violation in Parton distributions

被引：47
|
作者：
Boros, C [1 ]
Londergan, JT
Thomas, AW
机构：
[1] Univ Adelaide, Dept Phys & Math Phys, Adelaide, SA 5005, Australia
[2] Univ Adelaide, Special Res Ctr Subatom Struct Matter, Adelaide, SA 5005, Australia
[3] Indiana Univ, Dept Phys, Bloomington, IN 47405 USA
[4] Indiana Univ, Ctr Nucl Theory, Bloomington, IN 47405 USA
来源：
PHYSICAL REVIEW LETTERS | 1998年 / 81卷 / 19期
关键词：
D O I：
10.1103/PhysRevLett.81.4075
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Charge symmetry for parton distributions can be tested by comparing structure functions from neutrino and charged lepton deep inelastic scattering. New experiments provide rather tight upper limits on parton charge symmetry violation (CSV) for intermediate x, but suggest CSV effects at small x. Careful study of several corrections fails to remove this low-x discrepancy; We are thus forced to consider surprisingly large CSV effects in nucleon sea distributions. [S0031-9007(98)07546-2].
引用
收藏
页码：4075 / 4078
页数：4
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