Search for associated production of a Z boson with an invisibly decaying Higgs boson or dark matter candidates at [square root]s=13 TeV with the ATLAS detector

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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

Location
Deutsche Nationalbibliothek Frankfurt am Main
Extent
Online-Ressource
Language
Englisch
Notes
Physics letters. B. - 829 (2022) , 137066, ISSN: 1873-2445

Event
Veröffentlichung
(where)
Freiburg
(who)
Universität
(when)
2023
Creator
Contributor
Experimentelle Teilchenphysik, Abt. Prof. Heinemann
Experimentelle Teilchenphysik, Abt. Prof. Dr. Gregor Herten
Experimentelle Teilchenphysik, Abt. Prof. Karl Jakobs
Experimentelle Teilchenphysik, Abt. Prof. Schumacher

DOI
10.1016/j.physletb.2022.137066
URN
urn:nbn:de:bsz:25-freidok-2338972
Rights
Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
Last update
25.03.2025, 1:53 PM CET

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Associated

Time of origin

  • 2023

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