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001-es BibID:	BIBFORM120104
035-os BibID:	(Scopus)85127560044 (WoS)000770948400001
Első szerző:	Tumasyan, Armen
Cím:	Measurement of W^+/-[gamma] differential cross sections in proton-proton collisions at root{s} = 13 TeV and effective field theory constraints / A. Tumasyan, CMS Collaboration
Dátum:	2022
ISSN:	2470-0010 2470-0029
Megjegyzések:	Differential cross section measurements of W^+/-[gamma] production in proton-proton collisions at root{s}=13 TeV are presented. The data set used in this study was collected with the CMS detector at the CERN LHC in 2016-2018 with an integrated luminosity of 138 fb^-1. Candidate events containing an electron or muon, a photon, and missing transverse momentum are selected. The measurements are compared with standard model predictions computed at next-to-leading and next-to-next-to-leading orders in perturbative quantum chromodynamics. Constraints on the presence of TeV-scale new physics affecting the WW[gamma] vertex are determined within an effective field theory framework, focusing on the O_3W operator. A simultaneous measurement of the photon transverse momentum and the azimuthal angle of the charged lepton in a special reference frame is performed. This two-dimensional approach provides up to a factor of ten more sensitivity to the interference between the standard model and the O_3W contribution than using the transverse momentum alone.
Tárgyszavak:	Természettudományok Fizikai tudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk
Megjelenés:	Physical Review D. - 105 : 5 (2022), p. 1-34. -
További szerzők:	Bartók Márton (fizikus) Karancsi János (1987-) (fizikus) Raics Péter (1944-) (fizikus) Trócsányi Zoltán (1961-) (fizikus) Ujvári Balázs (1977-) (fizikus) CMS Collaboration
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