Search for a heavy composite Majorana neutrino in the final state with two leptons and two quarks at s=13TeV

The CMS collaboration

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

A search for physics beyond the standard model in the final state with two same-flavour leptons (electrons or muons) and two quarks produced in proton–proton collisions at s=13TeV is presented. The data were recorded by the CMS experiment at the CERN LHC and correspond to an integrated luminosity of 2.3fb−1. The observed data are in good agreement with the standard model background prediction. The results of the measurement are interpreted in the framework of a recently proposed model in which a heavy Majorana neutrino, N, stems from a composite-fermion scenario. Exclusion limits are set for the first time on the mass of the heavy composite Majorana neutrino, mN , and the compositeness scale Λ. For the case mN =Λ, the existence of Ne (Nμ) is excluded for masses up to 4.60 (4.70) TeV at 95% confidence level.

Original languageEnglish
Pages (from-to)315-337
Number of pages23
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume775
DOIs
Publication statusPublished - 10 Dec 2017

Keywords

  • CMS
  • Exotica

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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