2013/05/26 by Ke Ye, Ye, Ke, Daneng Yang +3
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #High Energy Physics - Phenomenology (hep-ph) #hep-ex #hep-ph
paper · pdf · doi:10.48550/arxiv.1305.5979
15 pages, 5 figures. arXiv admin note: text overlap with arXiv:1211.1641
arxiv created 2013/07/11 · arxiv updated 2013/07/15
In this paper we present for the first time a detailed Monte Carlo study of measuring WZGamma production with pure leptonic decays and probing anomalous quartic gauge-boson WWZGamma couplings at the sqrt(s) = 14 TeV LHC, with parton shower and detector simulation effects taken into account. We find that with an integrated luminosity of 100 fb-1 and proper selection cuts, the Standard Model WZGamma signal significance can be improved to as much as 3 sigma. After reviewing previous parametrization on anomalous WWZGamma couplings (see e.g.an/Lambda2 or k2m/Lambda2 as shown in Ref. [17]), we propose a more general parametrization scheme with 4 free inputs leading only to genuine WWZGamma aQGC couplings. Finally, our numerical results show that one can reach constraints at 95% confidence level of -5.7 * 10-5 GeV-2 < k2m/Lambda2 < 5.5 * 10-5 GeV-2 and -2.2 x 10-5 GeV-2 < an/Lambda2 < 2.4 * 10-5 GeV-2, which are more stringent than LEP's results by three orders of magnitude.