Measurement of the electroweak production of Z gamma and two jets in proton-proton collisions at root s=13 TeV and constraints on anomalous quartic gauge couplings

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The CMS Collaboration , Tumasyan , A , Adam , W , Eerola , P , Forthomme , L , Kirschenmann , H , Österberg , K , Voutilainen , M , Bharthuar , S , Brücken , E , Garcia , F , Havukainen , J , Heikkilä , J , Kim , M , Kinnunen , R , Lampén , T , Lassila-Perini , K , Laurila , S , Lehti , S , Lindén , T , Lotti , M , Luukka , P , Martikainen , L , Myllymäki , M E J , Ott , J , Pekkanen , J , Siikonen , H , Tuominen , E , Tuominiemi , J , Viinikainen , J , Petrow , H & Tuuva , T 2021 , ' Measurement of the electroweak production of Z gamma and two jets in proton-proton collisions at root s=13 TeV and constraints on anomalous quartic gauge couplings ' , Physical Review D , vol. 104 , no. 7 , 072001 . https://doi.org/10.1103/PhysRevD.104.072001

Title: Measurement of the electroweak production of Z gamma and two jets in proton-proton collisions at root s=13 TeV and constraints on anomalous quartic gauge couplings
Author: The CMS collaboration; Tumasyan, A.; Adam, W.; Eerola, P.; Forthomme, Laurent; Kirschenmann, H.; Österberg, K.; Voutilainen, M.; Bharthuar, Shudhashil; Brücken, Erik; Garcia, F.; Havukainen, J.; Heikkilä, Jaana; Kim, Minsuk; Kinnunen, R.; Lampén, T.; Lassila-Perini, K.; Laurila, S.; Lehti, S.; Lindén, T.; Lotti, Mikko; Luukka, P.; Martikainen, Laura; Myllymäki, Mikael Erkki Johannes; Ott, Jennifer; Pekkanen, Juska; Siikonen, H.; Tuominen, E.; Tuominiemi, J.; Viinikainen, Jussi; Petrow, H.; Tuuva, T.
Contributor organization: Department of Physics
Helsinki Institute of Physics
Date: 2021-10-05
Language: eng
Number of pages: 29
Belongs to series: Physical Review D
ISSN: 2470-0010
DOI: https://doi.org/10.1103/PhysRevD.104.072001
URI: http://hdl.handle.net/10138/336427
Abstract: The first observation of the electroweak (EW) production of a Z boson, a photon, and two forward jets (Z gamma jj) in proton-proton collisions at a center-of-mass energy of 13 TeV is presented. A data set corresponding to an integrated luminosity of 137 fb(-1), collected by the CMS experiment at the LHC in 2016-2018 is used. The measured fiducial cross section for EW Z gamma jj is sigma(Ew )= 5.21 +/- 0.52(stat)+/- 0.56(syst) fb = 5.21 +/- 0.76 fb. Single-differential cross sections in photon, leading lepton, and leading jet transverse momenta, and double-differential cross sections in mjj and vertical bar Delta eta(jj)vertical bar are also measured. Exclusion limits on anomalous quartic gauge couplings are derived at 95% confidence level in terms of the effective field theory operators M-0 to M-5, M-7, T-0 to T-2, and T-5 to T-9.
Subject: 114 Physical sciences
Peer reviewed: Yes
Rights: cc_by
Usage restriction: openAccess
Self-archived version: publishedVersion


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