Accurate simulation of W, Z, and Higgs boson decays in Sherpa

Krauss, Frank; Lindert, Jonas M.; Linten, Robin; Schönherr, Marek

doi:10.1140/epjc/s10052-019-6614-x

Accurate simulation of W, Z, and Higgs boson decays in Sherpa Thumbnail

Authors

Professor Frank Krauss frank.krauss@durham.ac.uk
Royal Society Wolfson Fellow

Jonas M. Lindert

Robin Linten

Dr Marek Schoenherr marek.schoenherr@durham.ac.uk
Associate Professor

Abstract

We discuss the inclusion of next-to–next-to leading order electromagnetic and of next-to leading order electroweak corrections to the leptonic decays of weak gauge and Higgs bosons in the Sherpa event generator. To this end, we modify the Yennie– Frautschi–Suura scheme for the resummation of soft photon corrections and its systematic improvement with fixed-order calculations, to also include the effect of virtual corrections due to the exchange of weak gauge bosons. We detail relevant technical aspects of our implementation and present numerical results for observables relevant for high-precision Drell–Yan and Higgs boson production and decay simulations at the LHC.

Citation

Krauss, F., Lindert, J. M., Linten, R., & Schönherr, M. (2019). Accurate simulation of W, Z, and Higgs boson decays in Sherpa. The European Physical Journal C, 79(2), Article 143. https://doi.org/10.1140/epjc/s10052-019-6614-x

Journal Article Type	Article
Acceptance Date	Jan 21, 2019
Online Publication Date	Feb 19, 2019
Publication Date	Feb 19, 2019
Deposit Date	Feb 22, 2019
Publicly Available Date	Feb 22, 2019
Journal	European Physical Journal C: Particles and Fields
Print ISSN	1434-6044
Electronic ISSN	1434-6052
Publisher	SpringerOpen
Peer Reviewed	Peer Reviewed
Volume	79
Issue	2
Article Number	143
DOI	https://doi.org/10.1140/epjc/s10052-019-6614-x

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© The Author(s) 2019.<br /> This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. Funded by SCOAP3.