CERN Accelerating science

Preprint
Report number	arXiv:2111.12515 ; CERN-LPCC-2021-002 ; CERN-LHCEFTWG-2021-001
Title	Electroweak input parameters
Author(s)	Brivio, Ilaria (Heidelberg U.) ; Dawson, Sally (Brookhaven) ; De Blas Mateo, Jorge (Universidad de Granada (ES)) ; Durieux, Gauthier (CERN) ; Savard, Pierre (University of Toronto (CA)) ; Denner, Ansgar (Julius Max. Universitaet Wuerzburg (DE)) ; Freitas, Ayres (Pittsbugh U.) ; Hays, Chris (University of Oxford (GB)) ; Pecjack, Ben (Durham U., IPPP) ; Vicini, Alessandro (Università degli Studi e INFN Milano (IT))
Publication	2021
Document contact	Contact: Gauthier Durieux Email: gauthier.durieux@cern.ch
Imprint	2021-11-24
Number of pages	7
Note	LHC EFT WG note, 5 pages
Subject category	Particle Physics - Phenomenology
Accelerator/Facility, Experiment	LHC
Abstract	Different sets of electroweak input parameters are discussed for SMEFT predictions at the LHC. The ${G_\mu, m_Z, m_W}$ one is presently recommended. A discussion of the advantages and disadvantages of different sets of electroweak input parameters took place in a working-group meeting on December 7, 2020 (see also the review on NLO predictions at the December 14 meeting). A preliminary version of this note was presented at the general working-group meeting on May 3, 2021 and the final recommendation discussed on June 28. Adopting a common set of electroweak parameters for tools making SMEFT predictions for LHC observables would ease comparisons and combinations, even though results obtained with one set can in principle be translated to another. For the sake of comparison, implementing different choices in tools would still be desirable.
Other source	Inspire
Copyright/License	preprint: (License: CC BY 4.0)
Submitted by	giovanni.petrucciani@cern.ch