Multiple singular emission in gauge theories
- 10 June 2003
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review D
- Vol. 67 (11) , 116003
- https://doi.org/10.1103/physrevd.67.116003
Abstract
I derive a class of functions unifying all singular limits for the emission of a given number of soft or collinear gluons in tree-level gauge-theory amplitudes. Each function is a generalization of the single-emission antenna function of my earlier paper. The helicity-summed squares of these functions are thus also generalizations to multiple singular emission of the Catani-Seymour dipole factorization function.Keywords
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