Searches for exclusive Higgs boson decays into 𝐷∗𝛾 and 𝑍 boson decays into 𝐷⁰𝛾 and 𝐾⁰𝑠 𝛾 in 𝑝𝑝 collisions at √ 𝑠 =13TeV with the ATLAS detector

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dc.contributor.authorAad, G.
dc.contributor.authorAakvaag, E.
dc.contributor.authorAbbott, B.
dc.contributor.authorAbeling, K.
dc.contributor.authorAbicht, N.J.
dc.contributor.authorAbidi, S.H.
dc.contributor.authorAboelela, M.
dc.contributor.authorAboulhorma, A.
dc.contributor.authorAbramowicz, H.
dc.contributor.authorAbreu, H.
dc.contributor.authorAbulaiti, Y.
dc.contributor.authorAcharya, B.S.
dc.contributor.authorAckermann, A.
dc.contributor.authorAdam Bourdarios, C.
dc.contributor.authorAdamczyk, L.
dc.contributor.authorAddepalli, S.V.
dc.contributor.authorAddison, M.J.
dc.contributor.authorAdelman, J.
dc.contributor.authorAdiguzel, A.
dc.contributor.authorAdye, T.
dc.contributor.authoret al.
dc.date.issued2024
dc.description.abstractSearches for exclusive decays of the Higgs boson into 𝐷∗𝛾 and of the 𝑍 boson into 𝐷0𝛾 and 𝐾0 𝑠 𝛾 can probe flavour-violating Higgs boson and 𝑍 boson couplings to light quarks. Searches for these decays are performed with a 𝑝𝑝 collision data sample corresponding to an integrated luminosity of 136.3 fb−1 collected at √𝑠=13TeV between 2016–2018 with the ATLAS detector at the CERN Large Hadron Collider. In the 𝐷∗𝛾 and 𝐷0𝛾 channels, the observed (expected) 95% confidence-level upper limits on the respective branching fractions are ß(𝐻 → 𝐷∗𝛾) <1.0(1.2) ×10−3, ß(𝑍 → 𝐷0𝛾) < 4.0(3.4) ×10−6, while the corresponding results in the 𝐾0 𝑠 𝛾 channel are ß(𝑍 →𝐾0 𝑠 𝛾) <3.1(3.0) ×10−6.
dc.description.statementofresponsibilityThe ATLAS Collaboration
dc.identifier.citationPhysics Letters B, 2024; 855:138762-1-138762-25
dc.identifier.doi10.1016/j.physletb.2024.138762
dc.identifier.issn0370-2693
dc.identifier.issn1873-2445
dc.identifier.urihttps://hdl.handle.net/2440/143875
dc.language.isoen
dc.publisherElsevier BV
dc.relation.grantARC
dc.rights© 2024 The Author(s). Published by Elsevier B.V. Funded by SCOAP³. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
dc.source.urihttp://dx.doi.org/10.1016/j.physletb.2024.138762
dc.subjectHiggs boson decays
dc.titleSearches for exclusive Higgs boson decays into 𝐷∗𝛾 and 𝑍 boson decays into 𝐷⁰𝛾 and 𝐾⁰𝑠 𝛾 in 𝑝𝑝 collisions at √ 𝑠 =13TeV with the ATLAS detector
dc.title.alternativeSearches for exclusive Higgs boson decays into 𝐷∗𝛾 and 𝑍 boson decays into 𝐷(o)𝛾 and 𝐾(o)𝑠 𝛾 in 𝑝𝑝 collisions at root 𝑠 =13TeV with the ATLAS detector
dc.typeJournal article
pubs.publication-statusPublished

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