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arXiv · 0908.2450

Spin-Dependent Antenna Splitting Functions

Andrew J. Larkoski·Michael E. Peskin
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Abstract

We consider parton showers based on radiation from QCD dipoles or `antennae'. These showers are built from 2->3 parton splitting processes. The question then arises of what functions replace the Altarelli-Parisi splitting functions in this approach. We give a detailed answer to this question, applicable to antenna showers in which partons carry definite helicity, and to both initial- and final-state emissions.

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Andrew J. Larkoski, Michael E. Peskin. 2010-02-24. Spin-Dependent Antenna Splitting Functions. https://doi.org/10.1103/physrevd.81.054010

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