Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/126237
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Type: Journal article
Title: Search for Higgs boson pair production in the γγbb¯ final state with 13 TeV pp collision data collected by the ATLAS experiment
Other Titles: Search for Higgs boson pair production in the gamma gamma bb -bar final state with 13 TeV pp collision data collected by the ATLAS experiment
Author: Aaboud, M.
Aad, G.
Abbott, B.
Abdinov, O.
Abeloos, B.
Abhayasinghe, D.K.
Abidi, S.H.
AbouZeid, O.S.
Abraham, N.L.
Abramowicz, H.
Abreu, H.
Abulaiti, Y.
Acharya, B.S.
Adachi, S.
Adamczyk, L.
Adelman, J.
Adersberger, M.
Adiguzel, A.
Adye, T.
Affolder, A.A.
et al.
Citation: Journal of High Energy Physics, 2018; 2018(11):1-44
Publisher: Springer
Issue Date: 2018
ISSN: 1126-6708
1029-8479
Statement of
Responsibility: 
M. Aaboud ... Paul Jackson ... Abhishek Sharma ... Martin White ... Damir Duvnjak ... Jason Oliver ... et al.
Abstract: A search is performed for resonant and non-resonant Higgs boson pair production in the γγbb¯¯ final state. The data set used corresponds to an integrated luminosity of 36.1 fb−1 of proton-proton collisions at a centre-of-mass energy of 13 TeV recorded by the ATLAS detector at the CERN Large Hadron Collider. No significant excess relative to the Standard Model expectation is observed. The observed limit on the non-resonant Higgs boson pair cross-section is 0.73 pb at 95% confidence level. This observed limit is equivalent to 22 times the predicted Standard Model cross-section. The Higgs boson self-coupling (κλ = λHHH/λ SM HHH ) is constrained at 95% confidence level to −8.2 < κλ < 13.2. For resonant Higgs boson pair production through X→HH→γγbb¯¯, the limit is presented, using the narrow-width approximation, as a function of mX in the range 260 GeV < mX < 1000 GeV. The observed limits range from 1.1 pb to 0.12 pb over this mass range.
Keywords: Hadron-Hadron scattering (experiments); Higgs physics
Rights: This article is published under an open access license. Please check the 'Copyright Information' section for details of this license and what re-use is permitted. If your intended use exceeds what is permitted by the license or if you are unable to locate the licence and re-use information, please contact the Rights and Permissions team.
RMID: 0030102719
DOI: 10.1007/JHEP11(2018)040
Appears in Collections:Physics publications

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