Finding the Higgs boson in decays to Z gamma using the matrix element method at Next-to-Leading Order
High Energy Physics - Phenomenology
2013-04-17 v1 High Energy Physics - Experiment
Abstract
We illustrate how the Matrix Element Method at Next-to-Leading Order (MEM@NLO) can be used to discriminate between events arising from the production of a Higgs boson, which subsequently decays to a final state consisting of ell^+ell^-gamma, and the background production of the same final state. We illustrate how the method could be used in an experimental analysis by devising cuts on the signal (P_S) and background (P_B) weights that are computed event-by-event in this approach. We find that we can increase the S/sqrt(B) ratio by around 50\% compared to an invariant mass fit on its own. Considering only statistical uncertainty, this is equivalent to recording a factor of around two times more integrated luminosity.
Keywords
Cite
@article{arxiv.1301.7086,
title = {Finding the Higgs boson in decays to Z gamma using the matrix element method at Next-to-Leading Order},
author = {John M. Campbell and R. Keith Ellis and Walter T. Giele and Ciaran Williams},
journal= {arXiv preprint arXiv:1301.7086},
year = {2013}
}
Comments
9 pages, 2 figures