Leonardi, R. and Romeo, F. and Fanò, L. and Panella, O. (2018) Search for heavy composite Majorana neutrinos at the CMS experiment at LHC. Il nuovo cimento C, 41 (1-2). pp. 1-4. ISSN 1826-9885
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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 observations 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 on the mass of the heavy composite Majorana neutrino, mN , and the compositness scale Λ. For the case mN = Λ, the existence of Ne is excluded for masses up to 4.60 TeV and the existence of Nμ is excluded for masses up to 4.70 TeV at 95% confidence level.
| Item Type: | Article |
|---|---|
| Subjects: | 500 Scienze naturali e Matematica > 530 Fisica |
| Depositing User: | Marina Spanti |
| Date Deposited: | 17 Nov 2020 11:42 |
| Last Modified: | 17 Nov 2020 11:42 |
| URI: | http://eprints.bice.rm.cnr.it/id/eprint/20078 |
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