All-Orders Singular Emission in Gauge Theories

Details All-Orders Singular Emission in Gauge Theories All-Orders Singular Emission in Gauge Theories

2003-01-10

arxiv.org/abs/hep-ph/0301069v1

Phys.Rev.Lett. 91 (2003) 061602

Physics

High Energy Physics

High Energy Physics - Phenomenology

5 pages, 1 figure

Scientific paper

10.1103/PhysRevLett.91.061602

I present a class of functions unifying all singular limits for the emission of soft or collinear gluons in gauge-theory amplitudes at any order in perturbation theory. Each function is a generalization of the antenna functions of ref. [1]. The helicity-summed interferences these functions are thereby also generalizations to higher orders of the Catani--Seymour dipole factorization function.

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