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Observation of Higgs boson decay to bottom quarks

The observation of the standard model (SM) Higgs boson decay to a pair of bottom quarks is presented. The main contribution to this result is from processes in which Higgs bosons are produced in association with a W or Z boson (VH), and are searched for in final states including 0, 1, or 2 charged...

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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
Published: American Physical Society 2018
Subjects:
Q Science (General)
QC Physics
Online Access:http://irep.iium.edu.my/70333/1/70333_Observation%20of%20Higgs%20Boson%20Decay_article.pdf
http://irep.iium.edu.my/70333/2/70333_Observation%20of%20Higgs%20Boson%20Decay_scopus.pdf
http://irep.iium.edu.my/70333/
https://journals.aps.org/prl/pdf/10.1103/PhysRevLett.121.121801
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spelling my.iium.irep.703332019-07-15T01:34:30Z http://irep.iium.edu.my/70333/ Observation of Higgs boson decay to bottom quarks Sirunyan, A. M. Tumasyan, A. R. Adam, Wolfgang Ambrogi, Federico Asilar, Ece Md. Ali, Mohd. Adli Q Science (General) QC Physics The observation of the standard model (SM) Higgs boson decay to a pair of bottom quarks is presented. The main contribution to this result is from processes in which Higgs bosons are produced in association with a W or Z boson (VH), and are searched for in final states including 0, 1, or 2 charged leptons and two identified bottom quark jets. The results from the measurement of these processes in a data sample recorded by the CMS experiment in 2017, comprising 41.3 fb−1 of proton-proton collisions at ffiffi s p ¼ 13 TeV, are described. When combined with previous VH measurements using data collected at ffiffi s p ¼ 7, 8, and 13 TeV, an excess of events is observed at mH ¼ 125 GeV with a significance of 4.8 standard deviations, where the expectation for the SM Higgs boson is 4.9. The corresponding measured signal strength is 1.01 0.22. The combination of this result with searches by the CMS experiment for H → bb¯ in other production processes yields an observed (expected) significance of 5.6 (5.5) standard deviations and a signal strength of 1.04 0.20. American Physical Society 2018-09-17 Article NonPeerReviewed application/pdf en http://irep.iium.edu.my/70333/1/70333_Observation%20of%20Higgs%20Boson%20Decay_article.pdf application/pdf en http://irep.iium.edu.my/70333/2/70333_Observation%20of%20Higgs%20Boson%20Decay_scopus.pdf Sirunyan, A. M. and Tumasyan, A. R. and Adam, Wolfgang and Ambrogi, Federico and Asilar, Ece and Md. Ali, Mohd. Adli (2018) Observation of Higgs boson decay to bottom quarks. Physical Review Letters, 121 (12). pp. 1-20. ISSN 0031-9007 https://journals.aps.org/prl/pdf/10.1103/PhysRevLett.121.121801 10.1103/PhysRevLett.121.121801
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
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
Observation of Higgs boson decay to bottom quarks
description The observation of the standard model (SM) Higgs boson decay to a pair of bottom quarks is presented. The main contribution to this result is from processes in which Higgs bosons are produced in association with a W or Z boson (VH), and are searched for in final states including 0, 1, or 2 charged leptons and two identified bottom quark jets. The results from the measurement of these processes in a data sample recorded by the CMS experiment in 2017, comprising 41.3 fb−1 of proton-proton collisions at ffiffi s p ¼ 13 TeV, are described. When combined with previous VH measurements using data collected at ffiffi s p ¼ 7, 8, and 13 TeV, an excess of events is observed at mH ¼ 125 GeV with a significance of 4.8 standard deviations, where the expectation for the SM Higgs boson is 4.9. The corresponding measured signal strength is 1.01 0.22. The combination of this result with searches by the CMS experiment for H → bb¯ in other production processes yields an observed (expected) significance of 5.6 (5.5) standard deviations and a signal strength of 1.04 0.20.
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 Observation of Higgs boson decay to bottom quarks
title_short Observation of Higgs boson decay to bottom quarks
title_full Observation of Higgs boson decay to bottom quarks
title_fullStr Observation of Higgs boson decay to bottom quarks
title_full_unstemmed Observation of Higgs boson decay to bottom quarks
title_sort observation of higgs boson decay to bottom quarks
publisher American Physical Society
publishDate 2018
url http://irep.iium.edu.my/70333/1/70333_Observation%20of%20Higgs%20Boson%20Decay_article.pdf
http://irep.iium.edu.my/70333/2/70333_Observation%20of%20Higgs%20Boson%20Decay_scopus.pdf
http://irep.iium.edu.my/70333/
https://journals.aps.org/prl/pdf/10.1103/PhysRevLett.121.121801
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score 13.211869

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