Search for anomalous gauge couplings in semi-leptonic decays of $$WW\gamma$$ and $$WZ\gamma$$ in pp collisions at $$\sqrt{s} =$$ 8 TeV
A study of the Standard Model (SM) three electroweak boson production, $$WV\gamma$$ where V = W or Z gauge boson, is presented concerning events with a leptonically decaying W boson accompanied by a photon and two or more jets. We are using the full 2012 dataset, of proton-proton collisions at a center-of-mass energy of 8 TeV and an integrated luminosity of 19.3 fb$${}^{-1}$$, collected by the CMS detector at the Large Hadron Collider (LHC). $$WV\gamma$$ production final states may be sensitive to anomalous $$WW\gamma\gamma$$ and $$WWZ\gamma$$ quartic couplings. In light of the recent discovery of a Higgs-like particle, we investigate, in a model independent way, any deviation of gauge boson couplings with respect to the SM prediction by setting limits on the anomalous quartic gauge couplings (aQGC) for $$WW\gamma\gamma$$ and $$WWZ\gamma$$. Upper limits at 95% confidence level are obtained, with and without a form factor.
- Research Organization:
- Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), High Energy Physics (HEP)
- Contributing Organization:
- CMS
- DOE Contract Number:
- AC02-07CH11359
- OSTI ID:
- 1831993
- Report Number(s):
- FERMILAB-CONF-13-712-CMS; arXiv:1310.0473; oai:inspirehep.net:1256468
- Country of Publication:
- United States
- Language:
- English
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