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Search for associated production of a Z boson with an invisibly decaying Higgs boson or dark matter candidates at √s = 13 TeV with the ATLAS detector
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The ATLAS Collaboration (Including: Becker, K., Facini, G., Harrison, P. F., Jones, E., Martin, T. A., Morgenstern, S., Murray, W. J., Roberts, B. A., Spangenberg, M. and Vladimirov, V. E.). (2022) Search for associated production of a Z boson with an invisibly decaying Higgs boson or dark matter candidates at √s = 13 TeV with the ATLAS detector. Physics Letters B, 829 . 137066. doi:10.1016/j.physletb.2022.137066 ISSN 0370-2693.
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WRAP-Search-for-associated-production-of-a-Z-boson-with-an-invisibly-decaying-Higgs-boson-or-dark-matter-candidates-Becker-2022.pdf - Published Version - Requires a PDF viewer. Available under License Creative Commons Attribution 4.0. Download (2071Kb) | Preview |
Official URL: https://doi.org/10.1016/j.physletb.2022.137066
Abstract
A search for invisible decays of the Higgs boson as well as searches for dark matter candidates, produced together with a leptonically decaying Z boson, are presented. The analysis is performed using proton−proton collisions at a centre-of-mass energy of 13 TeV, delivered by the LHC, corresponding to an integrated luminosity of 139 and recorded by the ATLAS experiment. Assuming Standard Model cross-sections for ZH production, the observed (expected) upper limit on the branching ratio of the Higgs boson to invisible particles is found to be 19% (19%) at the 95% confidence level. Exclusion limits are also set for simplified dark matter models and two-Higgs-doublet models with an additional pseudoscalar mediator.
| Item Type: | Journal Article | ||||||||||||||||||||||||
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| Subjects: | Q Science > QC Physics | ||||||||||||||||||||||||
| Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||||||||||||||||||||||
| Library of Congress Subject Headings (LCSH): | Higgs bosons, Large Hadron Collider (France and Switzerland), Particles (Nuclear physics), Dark matter (Astronomy), Z bosons, Proton-proton interactions | ||||||||||||||||||||||||
| Journal or Publication Title: | Physics Letters B | ||||||||||||||||||||||||
| Publisher: | Elsevier Science BV | ||||||||||||||||||||||||
| ISSN: | 0370-2693 | ||||||||||||||||||||||||
| Official Date: | June 2022 | ||||||||||||||||||||||||
| Dates: |
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| Volume: | 829 | ||||||||||||||||||||||||
| Number of Pages: | 25 | ||||||||||||||||||||||||
| Article Number: | 137066 | ||||||||||||||||||||||||
| DOI: | 10.1016/j.physletb.2022.137066 | ||||||||||||||||||||||||
| Status: | Peer Reviewed | ||||||||||||||||||||||||
| Publication Status: | Published | ||||||||||||||||||||||||
| Access rights to Published version: | Open Access (Creative Commons) | ||||||||||||||||||||||||
| Date of first compliant deposit: | 23 May 2022 | ||||||||||||||||||||||||
| Date of first compliant Open Access: | 24 May 2022 | ||||||||||||||||||||||||
| RIOXX Funder/Project Grant: |
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