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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


Christian Gutschow


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.


Schoenherr, M., & Gutschow, C. (2021). Four lepton production and the accuracy of QED FSR. The European Physical Journal C, 81, Article 48.

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
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