Search for heavy majorana neutrinos in same-sign dilepton channels in proton-proton collisions at √s = 13 TeV

A search is performed for a heavy Majorana neutrino (N), produced in leptonic decay of a W boson propagator and decaying into a W boson and a lepton, with the CMS detector at the LHC. The signature used in this search consists of two same-sign leptons, in any flavor combination of electrons and m...

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Main Authors:	Sirunyan, A. M., Tumasyan, A. R., Adam, Wolfgang, Ambrogi, Federico, Asilar, Ece, Md. Ali, Mohd. Adli
Format:	Article
Language:	English English English
Published:	Springer Verlag 2019
Subjects:	Q Science (General) QC Physics
Online Access:	http://irep.iium.edu.my/71625/ http://irep.iium.edu.my/71625/ http://irep.iium.edu.my/71625/ http://irep.iium.edu.my/71625/1/71625_Search%20for%20heavy%20Majorana%20neutrinos_article.pdf http://irep.iium.edu.my/71625/2/71625_Search%20for%20heavy%20Majorana%20neutrinos_wos.pdf http://irep.iium.edu.my/71625/3/71625_Search%20for%20heavy%20Majorana%20neutrinos_scopus.pdf

id	iium-71625
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spelling	iium-716252019-07-12T03:16:55Z http://irep.iium.edu.my/71625/ Search for heavy majorana neutrinos in same-sign dilepton channels in proton-proton collisions at √s = 13 TeV Sirunyan, A. M. Tumasyan, A. R. Adam, Wolfgang Ambrogi, Federico Asilar, Ece Md. Ali, Mohd. Adli Q Science (General) QC Physics A search is performed for a heavy Majorana neutrino (N), produced in leptonic decay of a W boson propagator and decaying into a W boson and a lepton, with the CMS detector at the LHC. The signature used in this search consists of two same-sign leptons, in any flavor combination of electrons and muons, and at least one jet. The data were collected during 2016 in proton-proton collisions at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 35.9 fb−1 . The results are found to be consistent with the expected standard model background. Upper limits are set in the mass range between 20 and 1600 GeV in the context of a Type-I seesaw mechanism, on \|VeN\| 2 , \|VµN\| 2 , and \|VeNV ∗ µN \| 2/(\|VeN\| 2 + \|VµN\| 2 ), where V`N is the matrix element describing the mixing of N with the standard model neutrino of flavor ` = e, µ. For N masses between 20 and 1600 GeV, the upper limits on \|V`N\| 2 range between 2.3 × 10−5 and unity. These are the most restrictive direct limits for heavy Majorana neutrino masses above 430 GeV. Springer Verlag 2019-01-01 Article PeerReviewed application/pdf en http://irep.iium.edu.my/71625/1/71625_Search%20for%20heavy%20Majorana%20neutrinos_article.pdf application/pdf en http://irep.iium.edu.my/71625/2/71625_Search%20for%20heavy%20Majorana%20neutrinos_wos.pdf application/pdf en http://irep.iium.edu.my/71625/3/71625_Search%20for%20heavy%20Majorana%20neutrinos_scopus.pdf Sirunyan, A. M. and Tumasyan, A. R. and Adam, Wolfgang and Ambrogi, Federico and Asilar, Ece and Md. Ali, Mohd. Adli (2019) Search for heavy majorana neutrinos in same-sign dilepton channels in proton-proton collisions at √s = 13 TeV. Journal of High Energy Physics, 2019 (1). pp. 1-54. ISSN 1126-6708 E-ISSN 1029-8479 https://link.springer.com/content/pdf/10.1007%2FJHEP01%282019%29122.pdf 10.1007/JHEP01(2019)122
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English English English
topic	Q Science (General) QC Physics
spellingShingle	Q Science (General) QC Physics Sirunyan, A. M. Tumasyan, A. R. Adam, Wolfgang Ambrogi, Federico Asilar, Ece Md. Ali, Mohd. Adli Search for heavy majorana neutrinos in same-sign dilepton channels in proton-proton collisions at √s = 13 TeV
description	A search is performed for a heavy Majorana neutrino (N), produced in leptonic decay of a W boson propagator and decaying into a W boson and a lepton, with the CMS detector at the LHC. The signature used in this search consists of two same-sign leptons, in any flavor combination of electrons and muons, and at least one jet. The data were collected during 2016 in proton-proton collisions at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 35.9 fb−1 . The results are found to be consistent with the expected standard model background. Upper limits are set in the mass range between 20 and 1600 GeV in the context of a Type-I seesaw mechanism, on \|VeN\| 2 , \|VµN\| 2 , and \|VeNV ∗ µN \| 2/(\|VeN\| 2 + \|VµN\| 2 ), where V`N is the matrix element describing the mixing of N with the standard model neutrino of flavor ` = e, µ. For N masses between 20 and 1600 GeV, the upper limits on \|V`N\| 2 range between 2.3 × 10−5 and unity. These are the most restrictive direct limits for heavy Majorana neutrino masses above 430 GeV.
format	Article
author	Sirunyan, A. M. Tumasyan, A. R. Adam, Wolfgang Ambrogi, Federico Asilar, Ece Md. Ali, Mohd. Adli
author_facet	Sirunyan, A. M. Tumasyan, A. R. Adam, Wolfgang Ambrogi, Federico Asilar, Ece Md. Ali, Mohd. Adli
author_sort	Sirunyan, A. M.
title	Search for heavy majorana neutrinos in same-sign dilepton channels in proton-proton collisions at √s = 13 TeV
title_short	Search for heavy majorana neutrinos in same-sign dilepton channels in proton-proton collisions at √s = 13 TeV
title_full	Search for heavy majorana neutrinos in same-sign dilepton channels in proton-proton collisions at √s = 13 TeV
title_fullStr	Search for heavy majorana neutrinos in same-sign dilepton channels in proton-proton collisions at √s = 13 TeV
title_full_unstemmed	Search for heavy majorana neutrinos in same-sign dilepton channels in proton-proton collisions at √s = 13 TeV
title_sort	search for heavy majorana neutrinos in same-sign dilepton channels in proton-proton collisions at √s = 13 tev
publisher	Springer Verlag
publishDate	2019
url	http://irep.iium.edu.my/71625/ http://irep.iium.edu.my/71625/ http://irep.iium.edu.my/71625/ http://irep.iium.edu.my/71625/1/71625_Search%20for%20heavy%20Majorana%20neutrinos_article.pdf http://irep.iium.edu.my/71625/2/71625_Search%20for%20heavy%20Majorana%20neutrinos_wos.pdf http://irep.iium.edu.my/71625/3/71625_Search%20for%20heavy%20Majorana%20neutrinos_scopus.pdf
first_indexed	2023-09-18T21:41:33Z
last_indexed	2023-09-18T21:41:33Z
_version_	1777413173937176576

Search for heavy majorana neutrinos in same-sign dilepton channels in proton-proton collisions at √s = 13 TeV

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