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Search for anomalous triple gauge couplings in WW and WZ production in lepton + jet events in proton-proton collisions at s√ = 13 TeV

(CMS Collaboration) Sirunyan, Albert M; Antunović, Željko; Brigljević, Vuko; Ceci, Saša; Ferenček, Dinko; Giljanović, Duje; Godinović, Nikola; Kadija, Krešo; Kovač, Marko; Lelas, Damir; Luetić, Jelena; Mesić, Benjamin; Puljak, Ivica; Roguljić, Matej; Starodumov, Andrey; Đurić, Senka; Šuša, Tatjana; Šćulac, Toni; Woods, Nathaniel (2019) Search for anomalous triple gauge couplings in WW and WZ production in lepton + jet events in proton-proton collisions at s√ = 13 TeV. Journal of High Energy Physics, 12 . ISSN 1126-6708

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Abstract

A search is presented for three additional operators that would lead to anomalous WWγ or WWZ couplings with respect to those in the standard model. They are constrained by studying events with two vector bosons ; a W boson decaying to eν or μν, and a W or Z boson decaying hadronically, reconstructed as a single, massive, large- radius jet. The search uses a data set of proton-proton collisions at a centre-of-mass energy of 13 TeV, recorded by the CMS experiment at the CERN LHC in 2016, and corresponding to an integrated luminosity of 35.9 fb−1. Using the reconstructed diboson invariant mass, 95% confidence intervals are obtained for the anomalous coupling parameters of −1.58 < cWWW/Λ2< 1.59 TeV−2, −2.00 < cW/Λ2< 2.65 TeV−2, and −8.78 < cB/Λ2< 8.54 TeV−2, in agreement with standard model expectations of zero for each parameter. These are the strictest bounds on these parameters to date.

Item Type: Article
Uncontrolled Keywords: High energy physics ; Experimental particle physics ; LHC ; CMS ; Particle Physics Experiments ; Hadron-Hadron scattering (experiments) ; Supersymmetry ; Higgs physics ; Beyond Standard Model ; Photon production
Subjects: NATURAL SCIENCES > Physics
Divisions: Division of Experimental Physics
Depositing User: Dinko Ferenček
Date Deposited: 18 Mar 2020 11:56
Last Modified: 11 Aug 2021 07:11
URI: http://fulir.irb.hr/id/eprint/5358
DOI: 10.1007/JHEP12(2019)062

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