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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/71625/1/71625_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
http://irep.iium.edu.my/71625/
https://link.springer.com/content/pdf/10.1007%2FJHEP01%282019%29122.pdf
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spelling my.iium.irep.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 https://link.springer.com/content/pdf/10.1007%2FJHEP01%282019%29122.pdf 10.1007/JHEP01(2019)122
institution Universiti Islam Antarabangsa Malaysia
building IIUM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider International Islamic University Malaysia
content_source IIUM Repository (IREP)
url_provider http://irep.iium.edu.my/
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/71625/1/71625_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
http://irep.iium.edu.my/71625/
https://link.springer.com/content/pdf/10.1007%2FJHEP01%282019%29122.pdf
_version_ 1643620009556049920
score 13.211869

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