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Four lepton production and the accuracy of QED FSR

Guetschow, Christian; Schoenherr, Marek; (2021) Four lepton production and the accuracy of QED FSR. The European Physical Journal C , 81 (1) , Article 48. 10.1140/epjc/s10052-020-08816-9. Green open access

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Abstract

We scrutinise the ability of the primary QED final-state resummation tools, combined with electroweak virtual corrections, to reproduce the exact next-to-leading order electroweak calculation in the four-charged-lepton final state. We further examine the dependence of the findings on the lepton-photon dressing-cone size as well as the resonance identification strategy. Overall we find excellent agreement with the fixed-order result, but partial differences not directly connected with resummation-induced higher-order effects at the few-percent level are observed in some cases, which are relevant for precision measurements.

Type: Article
Title: Four lepton production and the accuracy of QED FSR
Open access status: An open access version is available from UCL Discovery
DOI: 10.1140/epjc/s10052-020-08816-9
Publisher version: https://doi.org/10.1140/epjc/s10052-020-08816-9
Language: English
Additional information: © 2023 Springer Nature. This article is licensed under a Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/).
Keywords: Science & Technology, Physical Sciences, Physics, Particles & Fields, Physics
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy
URI: https://discovery.ucl.ac.uk/id/eprint/10178106
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