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Search for H -> gamma gamma produced in association with top quarks and constraints on the Yukawa coupling between the top quark and the Higgs boson using data taken at 7 TeV and 8 TeV with the ATLAS detector
ATLAS Collaboration
2015
Source PublicationPHYSICS LETTERS B
ISSN0370-2693
EISSN1873-2445
Volume740Pages:222-242
SubtypeArticle
AbstractA search is performed for Higgs bosons produced in association with top quarks using the diphoton decay mode of the Higgs boson. Selection requirements are optimized separately for leptonic and fully hadronic final states from the top quark decays. The dataset used corresponds to an integrated luminosity of 4.5 fb(-1) of proton-proton collisions at a center-of-mass energy of 7 TeV and 20.3 fb(-1) at 8 TeV recorded by the ATLAS detector at the CERN Large Hadron Collider. No significant excess over the background prediction is observed and upper limits are set on the ttH production cross section. The observed exclusion upper limit at 95% confidence level is 6.7 times the predicted Standard Model cross section value. In addition, limits are set on the strength of the Yukawa coupling between the top quark and the Higgs boson, taking into account the dependence of the ttH and tH cross sections as well as the H -> gamma gamma branching fraction on the Yukawa coupling. Lower and upper limits at 95% confidence level are set at 1.3 and +8.0 times the Yukawa coupling strength in the Standard Model. (C) 2014 The Authors. Published by Elsevier B.V.
KeywordHiggs boson Diphoton decay t(t)over-barH Top quark Yukawa coupling tH
Subject AreaAstronomy & Astrophysics; Physics
DOI10.1016/j.physletb.2014.11.049
Indexed BySCI ; INSPIREHEP ; ADS
Language英语
WOS Research AreaAstronomy & Astrophysics ; Physics, Nuclear ; Physics, Particles & Fields
WOS SubjectAstronomy & Astrophysics ; Physics
WOS IDWOS:000347046200030
ADS Bibcode2015PhLB..740..222A
ADS URLhttps://ui.adsabs.harvard.edu/abs/2015PhLB..740..222A
ADS CITATIONShttps://ui.adsabs.harvard.edu/abs/2015PhLB..740..222A/citations
inspireid1315819
inspireURLhttps://inspirehep.net/literature/1315819
Citation statistics
Cited Times:158 [INSPIRE]
Cited Times:33 [ADS]
Document Type期刊论文
Identifierhttp://ir.ihep.ac.cn/handle/311005/228161
Collection实验物理中心
Recommended Citation
GB/T 7714
ATLAS Collaboration. Search for H -> gamma gamma produced in association with top quarks and constraints on the Yukawa coupling between the top quark and the Higgs boson using data taken at 7 TeV and 8 TeV with the ATLAS detector[J]. PHYSICS LETTERS B,2015,740:222-242.
APA ATLAS Collaboration.(2015).Search for H -> gamma gamma produced in association with top quarks and constraints on the Yukawa coupling between the top quark and the Higgs boson using data taken at 7 TeV and 8 TeV with the ATLAS detector.PHYSICS LETTERS B,740,222-242.
MLA ATLAS Collaboration."Search for H -> gamma gamma produced in association with top quarks and constraints on the Yukawa coupling between the top quark and the Higgs boson using data taken at 7 TeV and 8 TeV with the ATLAS detector".PHYSICS LETTERS B 740(2015):222-242.
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