Hard photon production and matrix-element parton-shower merging
High Energy Physics - Phenomenology
2014-11-20 v2
Abstract
We present a Monte-Carlo approach to prompt-photon production, where photons and QCD partons are treated democratically. The photon fragmentation function is modelled by an interleaved QCD+QED parton shower. This known technique is improved by including higher-order real-emission matrix elements. To this end, we extend a recently proposed algorithm for merging matrix elements and truncated parton showers. We exemplify the quality of the Monte-Carlo predictions by comparing them to measurements of the photon fragmentation function at LEP and to measurements of prompt photon and diphoton production from the Tevatron experiments.
Cite
@article{arxiv.0912.3501,
title = {Hard photon production and matrix-element parton-shower merging},
author = {Stefan Hoeche and Steffen Schumann and Frank Siegert},
journal= {arXiv preprint arXiv:0912.3501},
year = {2014}
}
Comments
18 pages, 5 figures, revised version with minor updates