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...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English English English |
| Published: |
Springer Verlag
2019
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| Subjects: | |
| Online Access: | 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 |
| _version_ | 1848787481429803008 |
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| 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. |
| building | IIUM Repository |
| collection | Online Access |
| 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. |
| first_indexed | 2025-11-14T17:25:37Z |
| format | Article |
| id | iium-71625 |
| institution | International Islamic University Malaysia |
| institution_category | Local University |
| language | English English English |
| last_indexed | 2025-11-14T17:25:37Z |
| publishDate | 2019 |
| publisher | Springer Verlag |
| recordtype | eprints |
| repository_type | Digital Repository |
| 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 |
| 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 |
| title | 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_short | 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 |
| topic | Q Science (General) QC Physics |
| 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 |