10.1016/j.physletb.2017.04.071

Measurement of the Cross Section for Electroweak Production of Z Gamma in Association with Two Jets and Constraints on Anomalous Quartic Gauge Couplings in Proton-Proton Collisions at Root S=8 Tev

Abstract

A measurement is presented of the cross section for the electroweak production of a Z boson and a photon in association with two jets in proton-proton collisions at root s = 8 TeV. The Z bosons are identified through their decays to electron or muon pairs. The measurement is based on data collected with the CMS detector corresponding to an integrated luminosity of 19.7 fb(-1). The electroweak contribution has a significance of 3.0 standard deviations, and the measured fiducial cross section is 1.86(-0.75)(+0.90)(stat)(-0.26)(+0.34)(syst) +/- 0.05(lumi) fb, while the summed electroweak and quantum chromodynamic total cross section in the same region is observed to be 5.94(-1.35)(+1.53) (stat)(-0.37)(+0.43)(syst) +/- 0.13(lumi) fb. Both measurements are consistent with the leading-order standard model predictions. Limits on anomalous quartic gauge couplings are set based on the Z gamma mass distribution. (C) 2017 The Author. Published by Elsevier B.V.Wo

Similar works

Full text

Hacettepe University Institutional RepositoryProvided a free PDF (195.62 KB)

11655/18378oai:openaccess.hacettepe.edu.tr:11655/18378
Last time updated on December 18, 2019

Having an issue?

Is data on this page outdated, violates copyrights or anything else? Report the problem now and we will take corresponding actions after reviewing your request.