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Search for boosted diphoton resonances in the 10 to 70 GeV mass range using 138 fb⁻¹ of 13 TeV pp collisions with the ATLAS detector

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dc.contributor.authorAad, G.
dc.contributor.authorAbbott, B.
dc.contributor.authorAbbott, D.C.
dc.contributor.authorAbeling, K.
dc.contributor.authorAbidi, S.H.
dc.contributor.authorAboulhorma, A.
dc.contributor.authorAbramowicz, H.
dc.contributor.authorAbreu, H.
dc.contributor.authorAbulaiti, Y.
dc.contributor.authorAbusleme Hoffman, A.C.
dc.contributor.authorAcharya, B.S.
dc.contributor.authorAchkar, B.
dc.contributor.authorAdam, L.
dc.contributor.authorAdam Bourdarios, C.
dc.contributor.authorAdamczyk, L.
dc.contributor.authorAdamek, L.
dc.contributor.authorAddepalli, S.V.
dc.contributor.authorAdelman, J.
dc.contributor.authorAdiguzel, A.
dc.contributor.authorAdorni, S.
dc.contributor.authoret al.
dc.date.issued2023
dc.descriptionPublished: July 20, 2023
dc.description.abstractA search for diphoton resonances in the mass range between 10 and 70 GeV with the ATLAS experiment at the Large Hadron Collider (LHC) is presented. The analysis is based on pp collision data corresponding to an integrated luminosity of 138 fb⁻¹ at a centre-of-mass energy of 13 TeV recorded from 2015 to 2018. Previous searches for diphoton resonances at the LHC have explored masses down to 65 GeV, finding no evidence of new particles. This search exploits the particular kinematics of events with pairs of closely spaced photons reconstructed in the detector, allowing examination of invariant masses down to 10 GeV. The presented strategy covers a region previously unexplored at hadron colliders because of the experimental challenges of recording low-energy photons and estimating the backgrounds. No significant excess is observed and the reported limits provide the strongest bound on promptly decaying axion-like particles coupling to gluons and photons for masses between 10 and 70 GeV.
dc.description.statementofresponsibilityG. Aad ... E.K. Filmer ... P. Jackson ... A.X.Y. Kong ... H. Potti ... T.A. Ruggeri ... E.X.L. Ting ... M.J. White ... et al. (The ATLAS collaboration)
dc.identifier.citationJournal of High Energy Physics (JHEP), 2023; 2023(7):155-0-155-41
dc.identifier.doi10.1007/JHEP07(2023)155
dc.identifier.issn1029-8479
dc.identifier.issn1029-8479
dc.identifier.urihttps://hdl.handle.net/2440/139820
dc.language.isoen
dc.publisherSpringer-Verlag
dc.relation.grantARC
dc.rightsOpen Access, Copyright CERN, for the benefit of the ATLAS Collaboration. Article funded by SCOAP3. Open Access. This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.
dc.source.urihttps://doi.org/10.1007/jhep07(2023)155
dc.subjectHadron-Hadron Scattering; Beyond Standard Model
dc.titleSearch for boosted diphoton resonances in the 10 to 70 GeV mass range using 138 fb⁻¹ of 13 TeV pp collisions with the ATLAS detector
dc.title.alternativeSearch for boosted diphoton resonances in the 10 to 70 GeV mass range using 138 fb-1 of 13 TeV pp collisions with the ATLAS detector
dc.typeJournal article
pubs.publication-statusPublished

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