k-factorization and impact factors at next-to-leading level

被引：52

作者：

Ciafaloni, M

Colferai, D

机构：

[1] Univ Florence, Dipartimento Fis, I-50125 Florence, Italy

[2] Ist Nazl Fis Nucl, Sez Firenze, I-50125 Florence, Italy

来源：

NUCLEAR PHYSICS B | 1999年 / 538卷 / 1-2期

关键词：

D O I：

10.1016/S0550-3213(98)00621-X

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 further analyse, at next-to-leading log s level, the form of k-factorization and the definition of impact factors previously proposed by one of us, and we generalize them to the case of hard colourless probes. We then calculate the finite one-loop corrections to quark and gluon impact factors and we find them universal, and given by the same K factor which occurs in the soft timelike splitting functions. (C) 1999 Elsevier Science B.V.

引用

页码：187 / 214

页数：28

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