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

2018/09/27 by Frank Krauss, Jonas M. Lindert, Robin Linten +1
Physics and Astronomy · #Boson #Electroweak interaction #Event generator #Gauge (firearms) #Gauge boson #Gauge theory #Higgs boson #High-Energy Particle Collisions Research #Large Hadron Collider #Observable #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #Quantum mechanics #Resummation #Standard Model (mathematical formulation) #Technicolor #hep-ph

paper · pdf · doi:10.1140/epjc/s10052-019-6614-x

35 pages, 8 figures

arxiv created 2018/09/27 · openalex publication_date 2019/02/01 · arxiv updated 2019/03/27 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/06

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 S herpa 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.

Citations