On the calculation of the NLO virtual photon impact factor

被引：34

作者：

Fadin, VS ^{[1
]}

Ivanov, DY

Kotsky, MI

机构：

[1] Budker Inst Nucl Phys, Novosibirsk 630090, Russia

[2] Novosibirsk State Univ, Novosibirsk 630090, Russia

[3] Inst Math, Novosibirsk 630090, Russia

[4] Univ Regensburg, D-8400 Regensburg, Germany

来源：

NUCLEAR PHYSICS B | 2003年 / 658卷 / 1-2期

基金：

俄罗斯基础研究基金会;

关键词：

D O I：

10.1016/S0550-3213(03)00219-0

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：

The definition of the virtual photon impact factor involves the integration of the s-channel discontinuity of the photon-Reggeon scattering amplitude over the right cut. It permits to formulate a new approach for the calculation of the impact factor based on analytical properties of the amplitude in question. In the next-to-leading order it may give a possibility for considerable simplification of the calculation. We have shown that a-part of the diagrams contributing to the impact factor can be treated without their real calculation. (C) 2003 Elsevier Science B.V. All rights reserved.

引用

页码：156 / 174

页数：19

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