Twistor-space recursive formulation of gauge-theory amplitudes

被引：58

作者：

Bena, I ^{[1
]}

Bern, Z

Kosower, DA

机构：

[1] Univ Calif Los Angeles, Dept Phys & Astron, Los Angeles, CA 90095 USA

[2] CEA Saclay, Serv Phys, F-91191 Gif Sur Yvette, France

来源：

PHYSICAL REVIEW D | 2005年 / 71卷 / 04期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevD.71.045008

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Using twistor-space intuition, Cachazo, Svrcek and Witten presented novel diagrammatic rules for gauge-theory amplitudes, expressed in terms of maximally helicity-violating (MHV) vertices. We define non-MHV vertices, and show how to use them to give a recursive construction of these amplitudes. We also use them to illustrate the equivalence of various twistor-space prescriptions, and to determine the associated combinatoric factors.

引用

页码：045008 / 1

页数：14

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