S-matrix equivalence restored

被引：3

作者：

Fu, Chih-Hao ^{[1
]}

Fudger, Jonathan ^{[2
]}

Mansfield, Paul R. W. ^{[1
]}

Morris, Tim R. ^{[2
]}

Xiao, Zhiguang ^{[2
]}

机构：

[1] Univ Durham, Dept Math Sci, Durham DH1 3LE, England

[2] Univ Southampton, Sch Phys & Astron, Southampton SO17 1BJ, Hants, England

来源：

JOURNAL OF HIGH ENERGY PHYSICS | 2009年 / 06期

基金：

英国科学技术设施理事会;

关键词：

Gauge Symmetry; QCD; LOOP AMPLITUDES; GAUGE-THEORY; YANG-MILLS;

D O I：

10.1088/1126-6708/2009/06/035

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 canonical transformation that maps light-cone Yang-Mills theory to a Lagrangian description of the MHV rules is non-local, consequently the two sets of fields do not necessarily generate the same S-matrix. By deriving a new recursion relation for the canonical transformation expansion coefficients, we find a direct map between these coefficients and tree level light-cone diagrams. We use this to show that, at least up to one-loop with dimensionally regularised MHV vertices, the only difference is the omission of the one-loop amplitudes in which all gluons have positive helicity.

引用

页数：36

共 47 条

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