Search for lepton-flavor violating decays of heavy resonances and quantum black holes to eμ final states in proton-proton collisions at √s=13 TeV

A search is reported for heavy resonances decaying into eµ final states in proton-proton collisions recorded by the CMS experiment at the CERN LHC at √ s = 13 TeV, corresponding to an integrated luminosity of 35.9 fb−1 . The search focuses on resonance masses above 200 GeV. With no evidence fou...

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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 Nature 2018
Subjects:
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http://irep.iium.edu.my/65712/1/65712_Search%20for%20lepton-flavor%20violating%20decays_article.pdf
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spelling iium-657122019-01-24T07:58:31Z http://irep.iium.edu.my/65712/ Search for lepton-flavor violating decays of heavy resonances and quantum black holes to eμ final states 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 reported for heavy resonances decaying into eµ final states in proton-proton collisions recorded by the CMS experiment at the CERN LHC at √ s = 13 TeV, corresponding to an integrated luminosity of 35.9 fb−1 . The search focuses on resonance masses above 200 GeV. With no evidence found for physics beyond the standard model in the eµ mass spectrum, upper limits are set at 95% confidence level on the product of the cross section and branching fraction for this lepton-flavor violating signal. Based on these results, resonant τ sneutrino production in R-parity violating supersymmetric models is excluded for masses below 1.7 TeV, for couplings λ132 = λ231 = λ 0 311 = 0.01. Heavy Z0 gauge bosons with lepton-flavor violating transitions are excluded for masses up to 4.4 TeV. The eµ mass spectrum is also interpreted in terms of non-resonant contributions from quantum black-hole production in models with one to six extra spatial dimensions, and lower mass limits are found between 3.6 and 5.6 TeV. In all interpretations used in this analysis, the results of this search improve previous limits by Springer Nature 2018-04-01 Article PeerReviewed application/pdf en http://irep.iium.edu.my/65712/1/65712_Search%20for%20lepton-flavor%20violating%20decays_article.pdf application/pdf en http://irep.iium.edu.my/65712/2/65712_Search%20for%20lepton-flavor%20violating%20decays_scopus.pdf application/pdf en http://irep.iium.edu.my/65712/13/65712%20Search%20for%20lepton-flavor%20violating%20decays%20of%20heavy%20resonances%20and%20quantum%20black%20holes%20to%20e%CE%BC%20final%20states%20in%20proton-proton%20collisions%20at%20%E2%88%9As%3D13%20TeV_wos.pdf Sirunyan, A. M. and Tumasyan, A. R. and Adam, Wolfgang and Ambrogi, Federico and Asilar, Ece and Md. Ali, Mohd. Adli (2018) Search for lepton-flavor violating decays of heavy resonances and quantum black holes to eμ final states in proton-proton collisions at √s=13 TeV. Journal of High Energy Physics, 2018 (4). pp. 1-38. E-ISSN 1029-8479 https://link.springer.com/content/pdf/10.1007%2FJHEP04%282018%29073.pdf 10.1007/JHEP04(2018)073
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 lepton-flavor violating decays of heavy resonances and quantum black holes to eμ final states in proton-proton collisions at √s=13 TeV
description A search is reported for heavy resonances decaying into eµ final states in proton-proton collisions recorded by the CMS experiment at the CERN LHC at √ s = 13 TeV, corresponding to an integrated luminosity of 35.9 fb−1 . The search focuses on resonance masses above 200 GeV. With no evidence found for physics beyond the standard model in the eµ mass spectrum, upper limits are set at 95% confidence level on the product of the cross section and branching fraction for this lepton-flavor violating signal. Based on these results, resonant τ sneutrino production in R-parity violating supersymmetric models is excluded for masses below 1.7 TeV, for couplings λ132 = λ231 = λ 0 311 = 0.01. Heavy Z0 gauge bosons with lepton-flavor violating transitions are excluded for masses up to 4.4 TeV. The eµ mass spectrum is also interpreted in terms of non-resonant contributions from quantum black-hole production in models with one to six extra spatial dimensions, and lower mass limits are found between 3.6 and 5.6 TeV. In all interpretations used in this analysis, the results of this search improve previous limits by
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 lepton-flavor violating decays of heavy resonances and quantum black holes to eμ final states in proton-proton collisions at √s=13 TeV
title_short Search for lepton-flavor violating decays of heavy resonances and quantum black holes to eμ final states in proton-proton collisions at √s=13 TeV
title_full Search for lepton-flavor violating decays of heavy resonances and quantum black holes to eμ final states in proton-proton collisions at √s=13 TeV
title_fullStr Search for lepton-flavor violating decays of heavy resonances and quantum black holes to eμ final states in proton-proton collisions at √s=13 TeV
title_full_unstemmed Search for lepton-flavor violating decays of heavy resonances and quantum black holes to eμ final states in proton-proton collisions at √s=13 TeV
title_sort search for lepton-flavor violating decays of heavy resonances and quantum black holes to eμ final states in proton-proton collisions at √s=13 tev
publisher Springer Nature
publishDate 2018
url http://irep.iium.edu.my/65712/
http://irep.iium.edu.my/65712/
http://irep.iium.edu.my/65712/
http://irep.iium.edu.my/65712/1/65712_Search%20for%20lepton-flavor%20violating%20decays_article.pdf
http://irep.iium.edu.my/65712/2/65712_Search%20for%20lepton-flavor%20violating%20decays_scopus.pdf
http://irep.iium.edu.my/65712/13/65712%20Search%20for%20lepton-flavor%20violating%20decays%20of%20heavy%20resonances%20and%20quantum%20black%20holes%20to%20e%CE%BC%20final%20states%20in%20proton-proton%20collisions%20at%20%E2%88%9As%3D13%20TeV_wos.pdf
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last_indexed 2023-09-18T21:33:13Z
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