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

Krauss, Frank and Lindert, Jonas M. and Linten, Robin and Schönherr, Marek (2019) 'Accurate simulation of W, Z, and Higgs boson decays in Sherpa.', European physical journal C., 79 (2). p. 143.

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.

Item Type:Article
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Status:Peer-reviewed
Publisher Web site:https://doi.org/10.1140/epjc/s10052-019-6614-x
Publisher statement:© The Author(s) 2019. 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.
Date accepted:21 January 2019
Date deposited:22 February 2019
Date of first online publication:19 February 2019
Date first made open access:No date available

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