Search for anomalous triple gauge couplings in WW and WZ production in lepton + jet events in proton-proton collisions at $$\sqrt{s} =$$ 13 TeV
A search is presented for three additional operators that would lead to anomalous WWγ or WWZ couplings with respect to those in the standard model. They are constrained by studying events with two vector bosons, a W boson decaying to eν or μν, and a W or Z boson decaying hadronically, reconstructed as a single, massive, large- radius jet. The search uses a data set of proton-proton collisions at a centre-of-mass energy of 13 TeV, recorded by the CMS experiment at the CERN LHC in 2016, and corresponding to an integrated luminosity of 35.9 fb$$^{-1}$$. Using the reconstructed diboson invariant mass, 95% confidence intervals are obtained for the anomalous coupling parameters of -1.58 < $$c_{WWW}$$/Λ$$^{2}$$< 1.59 TeV$$^{-2}$$, -2.00 < c$$_{W}$$/Λ$$^{2}$$< 2.65 TeV$$^{-2}$$, and -8.78 < c$$_{B}$$/Λ$$^{2}$$< 8.54 TeV$$^{-2}$$, in agreement with standard model expectations of zero for each parameter. These are the strictest bounds on these parameters to date.
- Research Organization:
- Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States); Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
- Contributing Organization:
- The CMS collaboration
- Grant/Contract Number:
- AC02-07CH11359; AC02-05CH11231; SC0010005
- OSTI ID:
- 1557456
- Report Number(s):
- FERMILAB-PUB--19-413-CMS; arXiv:1907.08354; CMS-SMP--18-008; CERN-EP--2019-137; oai:inspirehep.net:1744608
- Journal Information:
- Journal of High Energy Physics (Online), Journal Name: Journal of High Energy Physics (Online) Journal Issue: 12 Vol. 2019; ISSN 1029-8479
- Publisher:
- Springer BerlinCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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