Study of η(1475) and Χ(1835) in Radiative J/ψ Decays to γφ

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dc.contributor.ORCID0000-0003-0867-2189 (Lou, X)
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.contributor.utdAuthorLou, Xinchou
dc.date.accessioned2019-05-15T20:54:31Z
dc.date.available2019-05-15T20:54:31Z
dc.date.created2018-03-06
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.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.identifier.issn2470-0010
dc.identifier.issue5
dc.identifier.urihttps://hdl.handle.net/10735.1/6481
dc.identifier.volume97
dc.language.isoen
dc.publisherAmer Physical Soc
dc.relation.urihttp://dx.doi.org/10.1103/PhysRevD.97.051101
dc.rightsCC BY 4.0 (Attribution)
dc.rights©2017 The Authors
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.source.journalPhysical Review D
dc.subjectGluons
dc.subjectJ/ψ (J/psi) meson
dc.subjectMesons
dc.titleStudy of η(1475) and Χ(1835) in Radiative J/ψ Decays to γφ
dc.type.genrearticle

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