Please use this identifier to cite or link to this item:
https://hdl.handle.net/2440/129971
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Type: | Journal article |
Title: | A search for the dimuon decay of the Standard Model Higgs boson with the ATLAS detector |
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. Adam, L. Adam Bourdarios, C. Adamczyk, L. Adamek, L. Adelman, J. Adersberger, M. et al. |
Citation: | Physics Letters B: Nuclear Physics and Particle Physics, 2021; 812:135980-135980 |
Publisher: | Elsevier |
Issue Date: | 2021 |
ISSN: | 0370-2693 1873-2445 |
Statement of Responsibility: | G.Aad, B.Abbott, D.C.Abbott, A.Abed Abud, K.Abeling ... Paul Jackson ... et al. |
Abstract: | A search for the dimuon decay of the Standard Model (SM) Higgs boson is performed using data corresponding to an integrated luminosity of 139 fb−1collected with the ATLAS detector in Run 2 ppcollisions at √s=13 TeV at the Large Hadron Collider. The observed (expected) significance over the background-only hypothesis for a Higgs boson with a mass of 125.09 GeV is 2.0σ(1.7σ). The observed upper limit on the cross section times branching ratio for pp →H→μμis 2.2times the SM prediction at 95% confidence level, while the expected limit on a H→μμsignal assuming the absence (presence) of a SM signal is 1.1(2.0). The best-fit value of the signal strength parameter, defined as the ratio of the observed signal yield to the one expected in the SM, is μ =1.2 ±0.6 |
Rights: | © 2020 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.2020.135980 |
Published version: | https://www.elsevier.com/en-au |
Appears in Collections: | Aurora harvest 4 Physics publications |
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hdl_129971.pdf | Published version | 976.94 kB | Adobe PDF | View/Open |
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