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https://hdl.handle.net/2440/124295
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Type: | Journal article |
Title: | Search for non-resonant Higgs boson pair production in the bbℓνℓν final state with the ATLAS detector in pp collisions at √s=13 TeV |
Other Titles: | Search for non-resonant Higgs boson pair production in the bb l nu l nu final state with the ATLAS detector in pp collisions at root s=13 TeV |
Author: | Aad, G. Abbott, B. Abbott, D.C. Abed Abud, A. Abeling, K. Abhayasinghe, D.K. Abidi, S.H. AbouZeid, O.S. Abraham, N.L. Abramowicz, H. Abreu, H. Abulaiti, Y. Acharya, B.S. Achkar, B. Adachi, S. Adam, L. Adam Bourdarios, C. Adamczyk, L. Adamek, L. Adelman, J. et al. |
Citation: | Physics Letters B: Nuclear Physics and Particle Physics, 2020; 801:135145-1-135145-22 |
Publisher: | Elsevier |
Issue Date: | 2020 |
ISSN: | 0370-2693 1873-2445 |
Statement of Responsibility: | G. Aad, B. Abbott, D.C. Abbott, A. Abed Abud ... Paul Jackson ... Martin White ... et al. (The ATLAS Collaboration) |
Abstract: | A search for non-resonant Higgs boson pair production, as predicted by the Standard Model, is presented, where one of the Higgs bosons decays via the channel and the other via one of the H→bb channels and the other via one of the H→WW⁎/ZZ⁎/ππ channels.The analysis selection requires events to have at least two b-tagged jets and exactly two leptons (electrons or muons) with opposite electric charge in the final state. Candidate events consistent with Higgs boson pair production are selected using a multi-class neural network discriminant. The analysis uses 139 fb−1 of pp collision data recorded at a centre-of-mass energy of 13 TeV by the ATLAS detector at the Large Hadron Collider. An observed (expected) upper limit of 1.2 (0.9⁺⁰·⁴/−₀‚₃) pb is set on the non-resonant Higgs boson pair production cross-section at 95% confidence level, which is equivalent to 40 (29⁺¹⁴/−₉) times the value predicted in the Standard Model. |
Rights: | ©2019 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). Funded by SCOAP3. |
DOI: | 10.1016/j.physletb.2019.135145 |
Published version: | http://dx.doi.org/10.1016/j.physletb.2019.135145 |
Appears in Collections: | Aurora harvest 4 Physics publications |
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hdl_124295.pdf | Published version | 1.81 MB | Adobe PDF | View/Open |
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