Search for the decay of a Higgs boson in the ℓℓγ channel in proton-proton collisions at √s=13 TeV

A search for a Higgs boson decaying into a pair of electrons or muons and a photon is described. Higgs boson decays to a Z boson and a photon (H → Zγ → ``γ,` = e or µ), or to two photons, one of which has an internal conversion into a muon pair (H → γ ∗γ → µµγ) were considered. The analysis is p...

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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:	Q Science (General) QC Physics
Online Access:	http://irep.iium.edu.my/69751/ http://irep.iium.edu.my/69751/ http://irep.iium.edu.my/69751/ http://irep.iium.edu.my/69751/1/69751_Search%20for%20the%20decay%20of%20a%20Higgs%20boson_article.pdf http://irep.iium.edu.my/69751/2/69751_Search%20for%20the%20decay%20of%20a%20Higgs%20boson_scopus.pdf http://irep.iium.edu.my/69751/13/69751%20Search%20for%20the%20decay%20of%20a%20Higgs%20boson%20WOS.pdf

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spelling	iium-697512019-07-15T01:47:28Z http://irep.iium.edu.my/69751/ Search for the decay of a Higgs boson in the ℓℓγ channel 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 for a Higgs boson decaying into a pair of electrons or muons and a photon is described. Higgs boson decays to a Z boson and a photon (H → Zγ → ``γ,` = e or µ), or to two photons, one of which has an internal conversion into a muon pair (H → γ ∗γ → µµγ) were considered. The analysis is performed using a data set recorded by the CMS experiment at the LHC from proton-proton collisions at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 35.9 fb−1 . No significant excess above the background prediction has been found. Limits are set on the cross section for a standard model Higgs boson decaying to opposite-sign electron or muon pairs and a photon. The observed limits on cross section times the corresponding branching fractions vary between 1.4 and 4.0 (6.1 and 11.4) times the standard model cross section for H → γ ∗γ → µµγ (H → Zγ → ``γ) in the 120–130 GeV mass range of the ``γ system. The H → γ ∗γ → µµγ and H → Zγ → ``γ analyses are combined for mH = 125 GeV, obtaining an observed (expected) 95% confidence level upper limit of 3.9 (2.0) times the standard model cross section. Springer Nature 2018-11 Article NonPeerReviewed application/pdf en http://irep.iium.edu.my/69751/1/69751_Search%20for%20the%20decay%20of%20a%20Higgs%20boson_article.pdf application/pdf en http://irep.iium.edu.my/69751/2/69751_Search%20for%20the%20decay%20of%20a%20Higgs%20boson_scopus.pdf application/pdf en http://irep.iium.edu.my/69751/13/69751%20Search%20for%20the%20decay%20of%20a%20Higgs%20boson%20WOS.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 the decay of a Higgs boson in the ℓℓγ channel in proton-proton collisions at √s=13 TeV. Journal of High Energy Physics, 2018 (11). pp. 1-41. ISSN 1029-8479 https://link.springer.com/content/pdf/10.1007%2FJHEP11%282018%29152.pdf 10.1007/JHEP11(2018)152
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 the decay of a Higgs boson in the ℓℓγ channel in proton-proton collisions at √s=13 TeV
description	A search for a Higgs boson decaying into a pair of electrons or muons and a photon is described. Higgs boson decays to a Z boson and a photon (H → Zγ → ``γ,` = e or µ), or to two photons, one of which has an internal conversion into a muon pair (H → γ ∗γ → µµγ) were considered. The analysis is performed using a data set recorded by the CMS experiment at the LHC from proton-proton collisions at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 35.9 fb−1 . No significant excess above the background prediction has been found. Limits are set on the cross section for a standard model Higgs boson decaying to opposite-sign electron or muon pairs and a photon. The observed limits on cross section times the corresponding branching fractions vary between 1.4 and 4.0 (6.1 and 11.4) times the standard model cross section for H → γ ∗γ → µµγ (H → Zγ → ``γ) in the 120–130 GeV mass range of the ``γ system. The H → γ ∗γ → µµγ and H → Zγ → ``γ analyses are combined for mH = 125 GeV, obtaining an observed (expected) 95% confidence level upper limit of 3.9 (2.0) times the standard model cross section.
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 the decay of a Higgs boson in the ℓℓγ channel in proton-proton collisions at √s=13 TeV
title_short	Search for the decay of a Higgs boson in the ℓℓγ channel in proton-proton collisions at √s=13 TeV
title_full	Search for the decay of a Higgs boson in the ℓℓγ channel in proton-proton collisions at √s=13 TeV
title_fullStr	Search for the decay of a Higgs boson in the ℓℓγ channel in proton-proton collisions at √s=13 TeV
title_full_unstemmed	Search for the decay of a Higgs boson in the ℓℓγ channel in proton-proton collisions at √s=13 TeV
title_sort	search for the decay of a higgs boson in the ℓℓγ channel in proton-proton collisions at √s=13 tev
publisher	Springer Nature
publishDate	2018
url	http://irep.iium.edu.my/69751/ http://irep.iium.edu.my/69751/ http://irep.iium.edu.my/69751/ http://irep.iium.edu.my/69751/1/69751_Search%20for%20the%20decay%20of%20a%20Higgs%20boson_article.pdf http://irep.iium.edu.my/69751/2/69751_Search%20for%20the%20decay%20of%20a%20Higgs%20boson_scopus.pdf http://irep.iium.edu.my/69751/13/69751%20Search%20for%20the%20decay%20of%20a%20Higgs%20boson%20WOS.pdf
first_indexed	2023-09-18T21:39:01Z
last_indexed	2023-09-18T21:39:01Z
_version_	1777413013974810624

Search for the decay of a Higgs boson in the ℓℓγ channel in proton-proton collisions at √s=13 TeV

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