This Letter presents a search for new physics manifested as anomalous triple gauge boson couplings in WW and WZ diboson production in proton–proton collisions. The search is performed using events containing a W boson that decays leptonically and a W or Z boson whose decay products are merged into a single reconstructed jet. The data, collected at s=8 TeV with the CMS detector at the LHC, correspond to an integrated luminosity of 19 fb−1. No evidence for anomalous triple gauge couplings is found and the following 95% confidence level limits are set on their values: λ ([−0.011,0.011]), Δκγ([−0.044,0.063]), and Δg1Z([−0.0087,0.024]). These limits are also translated into their effective field theory equivalents: cWWW/Λ2([−2.7,2.7] TeV−2), cB/Λ2([−14,17] TeV−2), and cW/Λ2([−2.0,5.7] TeV−2).

Search for anomalous couplings in boosted WW/WZ-> l nu q q- production in proton-proton collisions at sqrt(s)=8 TeV

CALVELLI, VALERIO;MONGE, MARIA ROBERTA;TOSI, SILVANO;RAVERA, FABIO;
2017-01-01

Abstract

This Letter presents a search for new physics manifested as anomalous triple gauge boson couplings in WW and WZ diboson production in proton–proton collisions. The search is performed using events containing a W boson that decays leptonically and a W or Z boson whose decay products are merged into a single reconstructed jet. The data, collected at s=8 TeV with the CMS detector at the LHC, correspond to an integrated luminosity of 19 fb−1. No evidence for anomalous triple gauge couplings is found and the following 95% confidence level limits are set on their values: λ ([−0.011,0.011]), Δκγ([−0.044,0.063]), and Δg1Z([−0.0087,0.024]). These limits are also translated into their effective field theory equivalents: cWWW/Λ2([−2.7,2.7] TeV−2), cB/Λ2([−14,17] TeV−2), and cW/Λ2([−2.0,5.7] TeV−2).
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11567/878587
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 35
  • ???jsp.display-item.citation.isi??? 28
social impact