# Helicity-dependent showers and matching with VINCIA

@inproceedings{Larkoski2013HelicitydependentSA,
title={Helicity-dependent showers and matching with VINCIA},
author={Andrew J. Larkoski and Juan J. Lopez-Villarejo and Peter Skands},
year={2013}
}
• Published 5 January 2013
• Computer Science
We present an antenna-shower formalism that includes helicity dependence for massless partons. The formalism applies to both traditional (global) showers and to sector-based variants. We combine the shower with VINCIA's multiplicative approach to matrix-element matching, generalized to operate on each helicity configuration separately. The result is a substantial gain in computational speed for high parton multiplicities. We present an implementation of both sector and global showers, with min…
29 Citations

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