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| CMS-SMP-13-009 ; CERN-PH-EP-2014-046 | ||
| A search for WWγ and WZγ production and constraints on anomalous quartic gauge couplings in pp collisions at √s = 8 TeV | ||
| CMS Collaboration | ||
| 17 April 2014 | ||
| Phys. Rev. D 90 (2014) 032008 | ||
| Abstract: A search for WVγ triple vector boson production is presented based on events containing a W boson decaying to a muon or an electron and a neutrino, a second V (W or Z) boson, and a photon. The data correspond to an integrated luminosity of 19.3 inverse femtobarns collected in 2012 with the CMS detector at the LHC in pp collisions at √s = 8 TeV. An upper limit of 311 fb on the fiducial cross section for the WVγ production process is obtained at 95% confidence level for photons with a transverse energy above 30 GeV and with an absolute value of pseudorapidity of less than 1.44. This limit is approximately a factor of 3.4 larger than the standard model predictions that are based on next-to-leading order QCD calculations. Since no evidence of anomalous WWγγ or WWZγ quartic gauge boson couplings is found, this paper presents the first experimental limits on the dimension-8 parameter fT,0 and the CP-conserving WWZγ parameters κW0 and κWC. Limits are also obtained for the WWγγ parameters aW0 and aWC. | ||
| Links: e-print arXiv:1404.4619 [hep-ex] (PDF) ; CDS record ; inSPIRE record ; Public twiki page ; CADI line (restricted) ; | ||
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Compact Muon Solenoid LHC, CERN |
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