Search for $WW \gamma$ and $WZ \gamma$ production and constraints on anomalous quartic gauge couplings in $pp$ collisions at $\sqrt s =$ 8 TeV - INSPIRE

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Search for $WW \gamma$ and $WZ \gamma$ production and constraints on anomalous quartic gauge couplings in $pp$ collisions at $\sqrt s =$ 8 TeV

CMS

Collaboration

Apr 17, 2014

20 pages

Published in:

Phys.Rev.D 90 (2014) 3, 032008

Published: Aug 25, 2014

e-Print:

1404.4619 [hep-ex]

DOI:

10.1103/PhysRevD.90.032008

PDG:

{{\mathit a}_{{{0}}}}/\Lambda {}^{2}

{{\mathit a}_{{{c}}}}/\Lambda {}^{2}

{{\mathit a}_{{{n}}}}/\Lambda {}^{2}

{{\mathit \kappa}_{{{0}}}^{W}}/\Lambda {}^{2}

{{\mathit \kappa}_{{{c}}}^{W}}/\Lambda {}^{2}

{{\mathit f}}_{T,0}/\Lambda {}^{4}

{{\mathit f}}_{M,i}/\Lambda {}^{4}

{{\mathit \alpha}_{{{4}}}}

{{\mathit \alpha}_{{{5}}}}

_{S,i}/\Lambda {}^{4}

_{M,i}/\Lambda {}^{4}

_{T,i}/\Lambda {}^{4}

Report number:

CMS-SMP-13-009,
CERN-PH-EP-2014-046

Experiments:

CERN-LHC-CMS

View in:

reference search108 citations

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Abstract: (APS)

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 fb−1 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 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-eight parameter fT,0 and the CP-conserving WWZγ parameters κ0W and κCW. Limits are also obtained for the WWγγ parameters a0W and aCW.

Note:

Replaced with published version. Added journal reference and DOI

14.70.-e
12.60.Cn
13.38.Be
p p: scattering
vector boson: pair production
coupling: (4gauge boson)
higher-order: 1
photon: associated production
quantum chromodynamics
photon: transverse energy

References(59)

Figures(11)

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