One-loop QCD corrections to massless quark scattering at NNLO

被引：30

作者：

Anastasiou, C ^{[1
]}

Glover, EWN

Oleari, C

Tejeda-Yeomans, ME

机构：

[1] Univ Durham, Dept Phys, Durham DH1 3LE, England

[2] Univ Wisconsin, Dept Phys, Madison, WI 53706 USA

来源：

PHYSICS LETTERS B | 2001年 / 506卷 / 1-2期

基金：

澳大利亚研究理事会;

关键词：

QCD; jets; LEP HERA; SLC physics; NLO and NNLO computations;

D O I：

10.1016/S0370-2693(01)00356-2

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present the O(alpha (4)(s)) virtual QCD corrections to massless unlike-quark q (q) over bar --> q '(q) over bar ' and massless like-quark scattering q (q) over bar --> q (q) over bar due to the interference of one-loop amplitudes with one-loop amplitudes. The structure of the infrared divergences agrees with that predicted by Catani, The results are expressed in an analytic form so that the relevant expressions for crossed scattering processes can be obtained in a straightforward manner. The one-loop contributions presented here, together with the interference of tree with two-loop amplitudes given recently, complete the 2 --> 2 virtual QCD corrections at NNLO for the massless quark scattering processes, (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：59 / 67

页数：9

共 23 条

[1] The two-loop scalar and tensor Pentabox graph with light-like legs (vol 575, pg 416, 2000) [J].