Search for a heavy composite Majorana neutrino in the final state with two leptons and two quarks at $\\sqrts=13$ TeV
Journal
Physics Letters
Journal Volume
B775
Pages
315-337
Date Issued
2017
Author(s)
Sirunyan, A. M. et al.
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 = 13 TeV is presented. The data were recorded by the CMS experiment at the CERN LHC and correspond to an integrated luminosity of 2.3 fb -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, m N , and the compositeness scale . For the case m N = , the existence of N e (N ) is excluded for masses up to 4.60 (4.70) TeV at 95% confidence level.
Type
journal article