Search for a heavy composite Majorana neutrino in the final state with two leptons and two quarks at s=13TeV
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 lumino...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English English |
| Published: |
Elsevier
2018
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| Subjects: | |
| Online Access: | http://irep.iium.edu.my/63055/ http://irep.iium.edu.my/63055/ http://irep.iium.edu.my/63055/ http://irep.iium.edu.my/63055/1/63055_Search%20for%20a%20heavy%20composite%20Majorana%20neutrino_article.pdf http://irep.iium.edu.my/63055/2/63055_Search%20for%20a%20heavy%20composite%20Majorana%20neutrino_scopus.pdf |
| Summary: | 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, mN , and the
compositeness scale �. For the case mN = �, the existence of Ne (Nμ) is excluded for masses up to 4.60
(4.70) TeV at 95% confidence level. |
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