Evolution of transverse momentum dependent distribution and fragmentation functions

被引：37
|
作者：
Henneman, AA
Boer, D
Mulders, PJ
机构：
[1] Vrije Univ Amsterdam, Div Phys & Astron, NL-1081 HV Amsterdam, Netherlands
[2] Brookhaven Natl Lab, RIKEN BNL Res Ctr, Upton, NY 11973 USA
来源：
NUCLEAR PHYSICS B | 2002年 / 620卷 / 1-2期
关键词：
D O I：
10.1016/S0550-3213(01)00557-0
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
We use Lorentz invariance and the QCD equations of motion to study the evolution of functions that appear at leading order in a I / Q expansion in azimuthal asymmetries. This includes the evolution equation of the Collins fragmentation function. The moments of these functions are matrix elements of known twist two and twist three operators. We present the evolution in the large N-c limit, restricting to non-singlet for the chiral-even functions. (C) 2002 Published by Elsevier Science B.V.
引用
收藏
页码：331 / 350
页数：20
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