Show simple item record

dc.contributor.authorAblikim, M.
dc.contributor.authorAchasov, M. N.
dc.contributor.authorAhmed, S.
dc.contributor.authorAlbayrak, O.
dc.contributor.authorAlbrecht, M.
dc.contributor.authorAlekseev, M.
dc.contributor.authorAmbrose, D. J.
dc.contributor.authorLou, Xinchou
dc.contributor.authorBESIII Collaboration
dc.description.abstractThe decay J/ψ → γγφ is studied using a sample of 1.31 x 10⁹ J/ψ events collected with the BESIII detector. Two structures around 1475 MeV/c² and 1835 MeV/c² are observed in the γφ invariant mass spectrum for the first time. With a fit on the γφ invariant mass, which takes into account the interference between the two structures, and a simple analysis of the angular distribution, the structure around 1475 MeV/c² is found to favor an assignment as the η(1475) and the mass and width for the structure around 1835 MeV/c² are consistent with the X(1835). The statistical significances of the two structures are 13.5σ and 6.3σ, respectively. The results indicate that both η(1475) and X(1835) contain a sizeable ss̅ component.
dc.publisherAmer Physical Soc
dc.rightsCC BY 4.0 (Attribution)
dc.rights©2017 The Authors
dc.subjectJ/ψ (J/psi) meson
dc.titleStudy of η(1475) and Χ(1835) in Radiative J/ψ Decays to γφ
dc.description.departmentSchool of Natural Sciences and Mathematics
dc.identifier.bibliographicCitationAblikim, M., M. N. Achasov, S. Ahmed, O. Albayrak, et al. 2018. "Study of η(1475) and X(1835) in radiative J/Ψ decays to γφ." Physical Review D 97(5): 051101 1-8.
dc.source.journalPhysical Review D
dc.contributor.utdAuthorLou, Xinchou
dc.contributor.ORCID0000-0003-0867-2189 (Lou, X)

Files in this item


This item appears in the following Collection(s)

Show simple item record

CC BY 4.0 (Attribution)
Except where otherwise noted, this item's license is described as CC BY 4.0 (Attribution)