Bounds on transverse momentum dependent distribution and fragmentation functions

被引:135
|
作者
Bacchetta, A [1 ]
Boglione, M [1 ]
Henneman, A [1 ]
Mulders, PJ [1 ]
机构
[1] Vrije Univ Amsterdam, Dept Theoret Phys, NL-1081 HV Amsterdam, Netherlands
关键词
D O I
10.1103/PhysRevLett.85.712
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We give bounds on the distribution and fragmentation functions that appear at lending order in deep inelastic one-particle inclusive leptoproduction or in Drell-Yan processes. These bounds simply follow from positivity of the defining matrix elements and are an important guidance in estimating: the magnitude of the azimuthal and spin asymmetries in these processes.
引用
收藏
页码:712 / 715
页数:4
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