Search for new physics in high-mass diphoton events from proton-proton collisions at s = 13 TeV

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dc.authorscopusidCandan Dözen / 36170197700
dc.contributor.authorHayrapetyan, A.
dc.contributor.authorTumasyan, A.
dc.contributor.authorAdam, W.
dc.contributor.authorDözen, Candan
dc.date.accessioned2025-04-18T10:22:00Z
dc.date.available2025-04-18T10:22:00Z
dc.date.issued2024
dc.departmentİstinye Üniversitesi, Rektörlük, Temel Bilimler Bölümü
dc.description.abstractResults are presented from a search for new physics in high-mass diphoton events from proton-proton collisions at s = 13 TeV. The data set was collected in 2016–2018 with the CMS detector at the LHC and corresponds to an integrated luminosity of 138 fb−1. Events with a diphoton invariant mass greater than 500 GeV are considered. Two different techniques are used to predict the standard model backgrounds: parametric fits to the smoothly-falling background and a first-principles calculation of the standard model diphoton spectrum at next-to-next-to-leading order in perturbative quantum chromodynamics calculations. The first technique is sensitive to resonant excesses while the second technique can identify broad differences in the invariant mass shape. The data are used to constrain the production of heavy Higgs bosons, Randall-Sundrum gravitons, the large extra dimensions model of Arkani-Hamed, Dimopoulos, and Dvali (ADD), and the continuum clockwork mechanism. No statistically significant excess is observed. The present results are the strongest limits to date on ADD extra dimensions and RS gravitons with a coupling parameter greater than 0.1.
dc.identifier.citationHayrapetyan, A., Tumasyan, A., Adam, W., Andrejkovic, J. W., Bergauer, T., Chatterjee, S., ... & Jiang, C. H. (2024). Search for new physics in high-mass diphoton events from proton-proton collisions at $\sqrt {s} $= 13 TeV.
dc.identifier.doi10.1007/JHEP08(2024)215
dc.identifier.endpage41
dc.identifier.issn10298479
dc.identifier.issue8
dc.identifier.scopus2-s2.0-85202992368
dc.identifier.scopusqualityQ1
dc.identifier.startpage1
dc.identifier.urihttp://dx.doi.org/10.1007/JHEP08(2024)215
dc.identifier.urihttps://hdl.handle.net/20.500.12713/7039
dc.indekslendigikaynakScopus
dc.institutionauthorDözen, Candan
dc.institutionauthoridCandan Dözen / 0000-0002-4301-634X
dc.language.isoen
dc.publisherSpringer science and business media deutschland GmbH
dc.relation.ispartofJournal of high energy physics
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectBeyond Standard Model
dc.subjectHadron-Hadron Scattering
dc.subjectPhoton Production
dc.titleSearch for new physics in high-mass diphoton events from proton-proton collisions at s = 13 TeV
dc.typeArticle

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