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Monte Carlo Simulation of Hard Radiation in Decays in Beyond the Standard Model Physics in Herwig++

Richardson, Peter; Wilcock, Alexandra

Monte Carlo Simulation of Hard Radiation in Decays in Beyond the Standard Model Physics in Herwig++ Thumbnail


Authors

Alexandra Wilcock



Abstract

We use the POWHEG formalism in the Herwig++ event generator to match QCD real-emission matrix elements with the parton shower for a range of decays relevant to Beyond the Standard Model physics searches. Applying this correction affects the shapes of experimental observables and so changes the number of events passing selection criteria. To validate this approach, we study the impact of the correction on Standard Model top quark decays. We then illustrate the effect of the correction on Beyond the Standard Model scenarios by considering the invariant-mass distribution of dijets produced in the decay of the lightest Randall–Sundrum graviton and transverse momentum distributions for decays in Supersymmetry. We consider only the effect of the POWHEG correction on the simulation of the hardest emission in the shower and ignore the normalisation factor required to correct the total widths and branching ratios to next-to-leading order accuracy.

Citation

Richardson, P., & Wilcock, A. (2014). Monte Carlo Simulation of Hard Radiation in Decays in Beyond the Standard Model Physics in Herwig++. The European Physical Journal C, 74(1), Article 2713. https://doi.org/10.1140/epjc/s10052-014-2713-x

Journal Article Type Article
Acceptance Date Dec 23, 2013
Online Publication Date Jan 28, 2014
Publication Date Jan 31, 2014
Deposit Date May 10, 2013
Publicly Available Date Apr 16, 2019
Journal European Physical Journal C: Particles and Fields
Print ISSN 1434-6044
Electronic ISSN 1434-6052
Publisher SpringerOpen
Peer Reviewed Peer Reviewed
Volume 74
Issue 1
Article Number 2713
DOI https://doi.org/10.1140/epjc/s10052-014-2713-x

Files

Published Journal Article (1.8 Mb)
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Publisher Licence URL
http://creativecommons.org/licenses/by/4.0/

Copyright Statement
© The Author(s) 2014.
This article is distributed under the terms of the Creative Commons Attribution License which permits any use, distribution, and reproduction in any medium, provided the original author(s) and the source are credited. Funded by SCOAP3 / License Version CC BY 4.0.





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