Search for pair production of vector-like quarks in the bWb‾W channel from proton–proton collisions at s=13TeV

The CMS Collaboration

Research output: Contribution to journalArticlepeer-review

74 Citations (Scopus)

Abstract

A search is presented for the production of vector-like quark pairs, TT‾ or YY‾ with electric charge of 2/3 (T) or −4/3 (Y), in proton–proton collisions at s=13TeV. The data were collected by the CMS experiment at the LHC in 2016 and correspond to an integrated luminosity of 35.8fb−1. The T and Y quarks are assumed to decay exclusively to a W boson and a b quark. The search is based on events with a single isolated electron or muon, large missing transverse momentum, and at least four jets with large transverse momenta. In the search, a kinematic reconstruction of the final state observables is performed, which would permit a signal to be detected as a narrow mass peak (≈7% resolution). The observed number of events is consistent with the standard model prediction. Assuming strong pair production of the vector-like quarks and a 100% branching fraction to bW, a lower limit of 1295 GeV at 95% confidence level is set on the T and Y quark masses.

Original languageEnglish
Pages (from-to)82-106
Number of pages25
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume779
DOIs
Publication statusPublished - 2018 Apr 10

Bibliographical note

Publisher Copyright:
© 2018 The Author(s)

Keywords

  • CMS
  • Physics
  • Vector-like quarks

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Fingerprint

Dive into the research topics of 'Search for pair production of vector-like quarks in the bWb‾W channel from proton–proton collisions at s=13TeV'. Together they form a unique fingerprint.

Cite this