Evolution equations for extended dihadron fragmentation functions

被引：44

作者：

Ceccopieri, Federico A.

Radici, Marco ^{[1
]}

Bacchetta, Alessandro

机构：

[1] Univ Pavia, Dipartimento Fis Nucl & Teor, I-27100 Pavia, Italy

[2] Univ Parma, Dipartimento Fis, I-43100 Parma, Italy

[3] Ist Nazl Fis Nucl, Sez Pavia, I-27100 Pavia, Italy

[4] DESY, Theory Grp, D-22603 Hamburg, Germany

来源：

PHYSICS LETTERS B | 2007年 / 650卷 / 01期

关键词：

D O I：

10.1016/j.physletb.2007.04.065

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We consider dihadron fragmentation functions, describing the fragmentation of a parton in two unpolarized hadrons, and in particular extended dihadron fragmentation functions, explicitly dependent on the invariant mass, M-h, of the hadron pair. We first rederive the known results on M-h-integrated functions using jet calculus techniques, and then we present the evolution equations for extended dihadron fragmentation functions. Our results are relevant for the analysis of experimental measurements of two-particle-inclusive processes at different energies. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：81 / 89

页数：9

共 45 条

[31] Interference fragmentation functions and the nucleon's transversity [J].