Search for third-generation scalar leptoquarks in the tτ channel in proton-proton collisions at √s = 8 TeV

CMS Collaboration

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29 Citations (Scopus)

Abstract

A search for pair production of third-generation scalar leptoquarks decaying to top quark and τ lepton pairs is presented using proton-proton collision data at a center-of-mass energy of √s = 8TeV collected with the CMS detector at the LHC and corresponding to an integrated luminosity of 19.7 fb−1. The search is performed using events that contain an electron or a muon, a hadronically decaying τ lepton, and two or more jets. The observations are found to be consistent with the standard model predictions. Assuming that all leptoquarks decay to a top quark and a τ lepton, the existence of pair produced, charge −1/3, third-generation leptoquarks up to a mass of 685 GeV is excluded at 95% confidence level. This result constitutes the first direct limit for leptoquarks decaying into a top quark and a τ lepton, and may also be applied directly to the pair production of bottom squarks decaying predominantly via the R-parity violating coupling λ'333.
Original languageEnglish
Article number042
Number of pages44
JournalJournal of High Energy Physics
Volume2015
Issue number7
DOIs
Publication statusPublished - 2015
Externally publishedYes

Keywords

  • Hadron-Hadron Scattering
  • Beyond Standard Model

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