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Search for a standard model-like higgs boson in the mass range between 70 and 110 GeV in the diphoton final state in proton-proton collisions at root s=8 and 13 TeV

The results of a search for a standard model-like Higgs boson in the mass range between 70 and 110 GeV decaying into two photons are presented. The analysis uses the data set collected with the CMS experiment in proton-proton collisions during the 2012 and 2016 LHC running periods. The data sampl...

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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: Elsevier B.V. 2019
Subjects:
Q Science (General)
QC Physics
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spelling my.iium.irep.798812020-06-30T08:04:12Z http://irep.iium.edu.my/79881/ Search for a standard model-like higgs boson in the mass range between 70 and 110 GeV in the diphoton final state in proton-proton collisions at root s=8 and 13 TeV Sirunyan, A. M. Tumasyan, A. R. Adam, Wolfgang Ambrogi, Federico Asilar, Ece Md. Ali, Mohd. Adli Q Science (General) QC Physics The results of a search for a standard model-like Higgs boson in the mass range between 70 and 110 GeV decaying into two photons are presented. The analysis uses the data set collected with the CMS experiment in proton-proton collisions during the 2012 and 2016 LHC running periods. The data sample corresponds to an integrated luminosity of 19.7 (35.9)fb−1 at √s = 8 (13) TeV. The expected and observed 95% confidence level upper limits on the product of the cross section and branching fraction into two photons are presented. The observed upper limit for the 2012 (2016) data set ranges from 129 (161) fb to 31 (26) fb. The statistical combination of the results from the analyses of the two data sets in the common mass range between 80 and 110 GeV yields an upper limit on the product of the cross section and branching fraction, normalized to that for a standard model-like Higgs boson, ranging from 0.7 to 0.2, with two notable exceptions: one in the region around the Z boson peak, where the limit rises to 1.1, which may be due to the presence of Drell–Yan dielectron production where electrons could be misidentified as isolated photons, and a second due to an observed excess with respect to the standard model prediction, which is maximal for a mass hypothesis of 95.3 GeV with a local (global) significance of 2.8 (1.3) standard deviations. Elsevier B.V. 2019-06-10 Article NonPeerReviewed application/pdf en http://irep.iium.edu.my/79881/1/79881_Search%20for%20a%20standard%20model-like%20Higgs%20boson_article.pdf application/pdf en http://irep.iium.edu.my/79881/2/79881_Search%20for%20a%20standard%20model-like%20Higgs%20boson_scopus.pdf application/pdf en http://irep.iium.edu.my/79881/3/79881_Search%20for%20a%20standard%20model-like%20Higgs%20boson_wos.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 a standard model-like higgs boson in the mass range between 70 and 110 GeV in the diphoton final state in proton-proton collisions at root s=8 and 13 TeV. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 793. pp. 320-347. ISSN 0370-2693 https://reader.elsevier.com/reader/sd/pii/S0370269319302904?token=7E64F314D3F704AFC47413ED0AD8AB5728D54FBF840C71F531ADBAD7D92FBF8B1E5CFC3611B24F034CDD5BA26DEB940B 10.1016/j.physletb.2019.03.064
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 a standard model-like higgs boson in the mass range between 70 and 110 GeV in the diphoton final state in proton-proton collisions at root s=8 and 13 TeV
description The results of a search for a standard model-like Higgs boson in the mass range between 70 and 110 GeV decaying into two photons are presented. The analysis uses the data set collected with the CMS experiment in proton-proton collisions during the 2012 and 2016 LHC running periods. The data sample corresponds to an integrated luminosity of 19.7 (35.9)fb−1 at √s = 8 (13) TeV. The expected and observed 95% confidence level upper limits on the product of the cross section and branching fraction into two photons are presented. The observed upper limit for the 2012 (2016) data set ranges from 129 (161) fb to 31 (26) fb. The statistical combination of the results from the analyses of the two data sets in the common mass range between 80 and 110 GeV yields an upper limit on the product of the cross section and branching fraction, normalized to that for a standard model-like Higgs boson, ranging from 0.7 to 0.2, with two notable exceptions: one in the region around the Z boson peak, where the limit rises to 1.1, which may be due to the presence of Drell–Yan dielectron production where electrons could be misidentified as isolated photons, and a second due to an observed excess with respect to the standard model prediction, which is maximal for a mass hypothesis of 95.3 GeV with a local (global) significance of 2.8 (1.3) standard deviations.
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 a standard model-like higgs boson in the mass range between 70 and 110 GeV in the diphoton final state in proton-proton collisions at root s=8 and 13 TeV
title_short Search for a standard model-like higgs boson in the mass range between 70 and 110 GeV in the diphoton final state in proton-proton collisions at root s=8 and 13 TeV
title_full Search for a standard model-like higgs boson in the mass range between 70 and 110 GeV in the diphoton final state in proton-proton collisions at root s=8 and 13 TeV
title_fullStr Search for a standard model-like higgs boson in the mass range between 70 and 110 GeV in the diphoton final state in proton-proton collisions at root s=8 and 13 TeV
title_full_unstemmed Search for a standard model-like higgs boson in the mass range between 70 and 110 GeV in the diphoton final state in proton-proton collisions at root s=8 and 13 TeV
title_sort search for a standard model-like higgs boson in the mass range between 70 and 110 gev in the diphoton final state in proton-proton collisions at root s=8 and 13 tev
publisher Elsevier B.V.
publishDate 2019
url http://irep.iium.edu.my/79881/1/79881_Search%20for%20a%20standard%20model-like%20Higgs%20boson_article.pdf
http://irep.iium.edu.my/79881/2/79881_Search%20for%20a%20standard%20model-like%20Higgs%20boson_scopus.pdf
http://irep.iium.edu.my/79881/3/79881_Search%20for%20a%20standard%20model-like%20Higgs%20boson_wos.pdf
http://irep.iium.edu.my/79881/
https://reader.elsevier.com/reader/sd/pii/S0370269319302904?token=7E64F314D3F704AFC47413ED0AD8AB5728D54FBF840C71F531ADBAD7D92FBF8B1E5CFC3611B24F034CDD5BA26DEB940B
_version_ 1672610182303055872
score 13.211869

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