Scale dependence of hadronic wave functions and parton densities

被引：38

作者：

Burkardt, M ^{[2
]}

Ji, XD

Yuan, F

机构：

[1] New Mexico State Univ, Dept Phys, Las Cruces, NM 88003 USA

[2] Univ Maryland, Dept Phys, College Pk, MD 20742 USA

来源：

PHYSICS LETTERS B | 2002年 / 545卷 / 3-4期

关键词：

D O I：

10.1016/S0370-2693(02)02596-0

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We study how the components of hadronic wave functions in light-cone quantization depend on the ultraviolet cut-off by relating them in a systematic way to the matrix elements of a class of quark-gluon operators between the QCD vacuum and the hadrons. From this, we derive an infinite set of scale-evolution equations for the individual contributions to parton distributions from the Fock expansion. When summed over all the contributions, we recover the well-known DGLAP equation. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：345 / 351

页数：7

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