Search for a massless dark photon in c →uγ′ decays

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dc.authorscopusidSerkant Ali Çetin / 34567544400
dc.authorscopusidOnur Buğra Kolcu / 57936993500
dc.authorwosidSerkant Ali Çetin / AGF-0147-2022
dc.authorwosidOnur Buğra Kolcu / P-4990-2015
dc.contributor.authorAblikim, M.
dc.contributor.authorAchasov, M.N.
dc.contributor.authorAdlarson, P.
dc.contributor.authorÇetin, Serkant Ali
dc.contributor.authorKolcu, Onur Buğra
dc.contributor.authorUman, Igor
dc.date.accessioned2025-04-18T10:00:48Z
dc.date.available2025-04-18T10:00:48Z
dc.date.issued2025
dc.departmentİstinye Üniversitesi, Rektörlük, Temel Bilimler Bölümü
dc.description.abstractUsing 7.9fb-1 of e+e- collision data collected at s=3.773 GeV with the BESIII detector at the BEPCII collider, we search for the massless dark photon with the flavor-changing neutral current processes D0→ωγ′ and D0→γγ′ for the first time. No significant signals are observed, and the upper limits at the 90% confidence level on the massless dark photon branching fraction are set to be 1.1×10-5 and 2.0×10-6 for D0→ωγ′ and D0→γγ′, respectively. These results provide the most stringent constraint on the new physics energy scale associated with cuγ′ coupling in the world, with the new physics energy scale related parameter |C|2+|C5|2<8.2×10-17 GeV-2 at the 90% confidence level. © 2025 authors. Published by the American Physical Society.
dc.identifier.citationAblikim, M., Achasov, M. N., Adlarson, P., Afedulidis, O., Ai, X. C., Aliberti, R., ... & Hu, Y. (2025). Search for a massless dark photon in c→ u γ′ decays. Physical Review D, 111(1), L011103.
dc.identifier.doi10.1103/PhysRevD.111.L011103
dc.identifier.issn24700010
dc.identifier.issn10.1103/PhysRevD.111.L011103
dc.identifier.issue1
dc.identifier.scopus2-s2.0-85216571408
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://hdl.handle.net/20.500.12713/6916
dc.identifier.volume111
dc.indekslendigikaynakScopus
dc.institutionauthorÇetin, Serkant Ali
dc.institutionauthorKolcu, Onur Buğra
dc.institutionauthorUman, Igor
dc.institutionauthoridSerkant Ali Çetin / 0000-0001-5050-8441
dc.institutionauthoridOnur Buğra Kolcu / 0000-0002-9177-1286
dc.language.isoen
dc.publisherAmerican Physical Society
dc.relation.ispartofPhysical Review D
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.titleSearch for a massless dark photon in c →uγ′ decays
dc.typeArticle

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