Non-supersymmetric loop amplitudes and MHV vertices

被引：99

作者：

Bedford, J ^{[1
]}

Brandhuber, A ^{[1
]}

Spence, B ^{[1
]}

Travaglini, G ^{[1
]}

机构：

[1] Queen Mary Univ London, Dept Phys, London E1 4NS, England

来源：

NUCLEAR PHYSICS B | 2005年 / 712卷 / 1-2期

关键词：

D O I：

10.1016/j.nuclphysb.2005.01.032

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 show how the MHV diagram description of Yang-Mills theories can be used to study non-supersymmetric loop amplitudes. In particular, we derive a compact expression for the cut-constructible part of the general one-loop MHV multi-gluon scattering amplitude in pure Yang-Mills theory. We show that in special cases this expression reduces to known amplitudes-the amplitude with adjacent negative-helicity gluons, and the five gluon non-adjacent amplitude. Finally, we briefly discuss the twistor space interpretation of our result. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：59 / 85

页数：27

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