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 root s = 13 TeVis 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-l, stems from a composite-fermion scenario. Exclusion limits are set for the first time on the mass of the heavy composite Majorana neutrino, m(Nl), and the compositeness scale Lambda. For the case m(Nl) = Lambda, the existence of N-e (N-mu) is excluded for masses up to 4.60 (4.70) TeV at 95% confidence level. (C) 2017 The Author(s). Published by Elsevier B.V.
TY - JOUR
AU - Sirunyan, A. M.
AU - Adžić, Petar
AU - Ćirković, Predrag
AU - Devetak, Damir
AU - Đorđević, Miloš
AU - Milošević, Jovan
AU - Reković, Vladimir
AU - Milenović, Predrag
PY - 2017
UR - https://vinar.vin.bg.ac.rs/handle/123456789/1859
AB - 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 root s = 13 TeVis 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-l, stems from a composite-fermion scenario. Exclusion limits are set for the first time on the mass of the heavy composite Majorana neutrino, m(Nl), and the compositeness scale Lambda. For the case m(Nl) = Lambda, the existence of N-e (N-mu) is excluded for masses up to 4.60 (4.70) TeV at 95% confidence level. (C) 2017 The Author(s). Published by Elsevier B.V.
T2 - Physics Letters B
T1 - Search for a heavy composite Majorana neutrino in the final state with two leptons and two quarks at root s=13 TeV
VL - 775
SP - 315
EP - 337
DO - 10.1016/j.physletb.2017.11.001
ER -
@article{
author = "Sirunyan, A. M. and Adžić, Petar and Ćirković, Predrag and Devetak, Damir and Đorđević, Miloš and Milošević, Jovan and Reković, Vladimir and Milenović, Predrag",
year = "2017",
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 root s = 13 TeVis 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-l, stems from a composite-fermion scenario. Exclusion limits are set for the first time on the mass of the heavy composite Majorana neutrino, m(Nl), and the compositeness scale Lambda. For the case m(Nl) = Lambda, the existence of N-e (N-mu) is excluded for masses up to 4.60 (4.70) TeV at 95% confidence level. (C) 2017 The Author(s). Published by Elsevier B.V.",
journal = "Physics Letters B",
title = "Search for a heavy composite Majorana neutrino in the final state with two leptons and two quarks at root s=13 TeV",
volume = "775",
pages = "315-337",
doi = "10.1016/j.physletb.2017.11.001"
}
Sirunyan, A. M., Adžić, P., Ćirković, P., Devetak, D., Đorđević, M., Milošević, J., Reković, V.,& Milenović, P.. (2017). Search for a heavy composite Majorana neutrino in the final state with two leptons and two quarks at root s=13 TeV. in Physics Letters B, 775, 315-337.
https://doi.org/10.1016/j.physletb.2017.11.001
Sirunyan AM, Adžić P, Ćirković P, Devetak D, Đorđević M, Milošević J, Reković V, Milenović P. Search for a heavy composite Majorana neutrino in the final state with two leptons and two quarks at root s=13 TeV. in Physics Letters B. 2017;775:315-337.
doi:10.1016/j.physletb.2017.11.001 .
Sirunyan, A. M., Adžić, Petar, Ćirković, Predrag, Devetak, Damir, Đorđević, Miloš, Milošević, Jovan, Reković, Vladimir, Milenović, Predrag, "Search for a heavy composite Majorana neutrino in the final state with two leptons and two quarks at root s=13 TeV" in Physics Letters B, 775 (2017):315-337,
https://doi.org/10.1016/j.physletb.2017.11.001 . .
