Search for anomalous couplings in boosted WW/WZ → lvqq‾ production in proton-proton collisions at √s = 8 TeV

CMS Collaboration

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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 19fb−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]), κγ([−0.044, 0.063]), and ΔgZ1 ([−0.0087, 0.024]). These limits are also translated into their effective field theory equivalents: cWWW2([−2.7, 2.7]TeV−2), cB2 ([−14, 17] TeV−2), and cW2([−2.0, 5.7]TeV−2).
Original languageEnglish
Pages (from-to)21-42
Number of pages22
JournalPhysics Letters B
Volume772
DOIs
Publication statusPublished - 2017
Externally publishedYes

Keywords

  • CMS
  • Physics
  • aTGC

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