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...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English English English |
| Published: |
Springer Nature
2018
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| Online Access: | 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 |
| _version_ | 1848787169744781312 |
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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 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. |
| first_indexed | 2025-11-14T17:20:40Z |
| format | Article |
| id | iium-69751 |
| institution | International Islamic University Malaysia |
| institution_category | Local University |
| language | English English English |
| last_indexed | 2025-11-14T17:20:40Z |
| publishDate | 2018 |
| publisher | Springer Nature |
| recordtype | eprints |
| repository_type | Digital Repository |
| 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 |
| 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 |
| title | 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_short | 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 |
| topic | Q Science (General) QC Physics |
| 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 |