Search for W′ bosons decaying to a top and a bottom quark at s=13TeV in the hadronic final state

The CMS collaboration

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Abstract

A search is performed for W bosons decaying to a top and a bottom quark in the all-hadronic final state, in proton-proton collisions at a center-of-mass energy of 13 TeV. The analyzed data were collected by the CMS experiment between 2016 and 2018 and correspond to an integrated luminosity of 137 fb−1. Deep neural network algorithms are used to identify the jet initiated by the bottom quark and the jet containing the decay products of the top quark when the W boson from the top quark decays hadronically. No excess above the estimated standard model background is observed. Upper limits on the production cross sections of W bosons decaying to a top and a bottom quark are set. Both left- and right-handed W bosons with masses below 3.4 TeV are excluded at 95% confidence level, and the most stringent limits to date on W bosons decaying to a top and a bottom quark in the all-hadronic final state are obtained.

Original languageEnglish (US)
Article number136535
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume820
DOIs
StatePublished - Sep 10 2021

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

Keywords

  • Boosted top
  • CMS
  • Top resonances
  • W' search

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