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Four lepton production and the accuracy of QED FSR

Schoenherr, Marek; Gutschow, Christian

Four lepton production and the accuracy of QED FSR Thumbnail


Authors

Christian Gutschow



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.

Citation

Schoenherr, M., & Gutschow, C. (2021). Four lepton production and the accuracy of QED FSR. The European Physical Journal C, 81, Article 48. https://doi.org/10.1140/epjc/s10052-020-08816-9

Journal Article Type Article
Acceptance Date Dec 28, 2020
Publication Date 2021
Deposit Date Jan 11, 2021
Publicly Available Date Jan 17, 2021
Journal European Physical Journal C: Particles and Fields
Print ISSN 1434-6044
Electronic ISSN 1434-6052
Publisher SpringerOpen
Peer Reviewed Peer Reviewed
Volume 81
Article Number 48
DOI https://doi.org/10.1140/epjc/s10052-020-08816-9
Related Public URLs https://arxiv.org/abs/2007.15360

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Publisher Licence URL
http://creativecommons.org/licenses/by/4.0/

Copyright Statement
© The Author(s)

This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.






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