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dc.contributor.authorAblikim, M.en_US
dc.contributor.authorAchasov, M. N.en_US
dc.contributor.authorAi, X. C.en_US
dc.contributor.authorAlbayrak, O.en_US
dc.contributor.authorAlbrecht, M.en_US
dc.contributor.authorAmbrose, D. J.en_US
dc.contributor.authorAmoroso, A.en_US
dc.contributor.authorLou, Xinchouen_US
dc.contributor.authorBESIII Collaborationen_US
dc.date.accessioned2018-05-24T18:18:20Z
dc.date.available2018-05-24T18:18:20Z
dc.date.created2017-05-11en_US
dc.date.issued2017-05-11en_US
dc.identifier.issn2470-0010en_US
dc.identifier.urihttp://hdl.handle.net/10735.1/5763
dc.description.abstractUsing (223.7 ± 1.4) x 10⁶ J/ψ events accumulated with the BESIII detector, we study η_c decays to φφ and ωφ final states. The branching fraction of η_c → φφ is measured to be Br(η_c → φφ) = (2.5 ± 0.3_{-0.7}^{+0.3} ± 0.6) X 10⁻³, where the first uncertainty is statistical, the second is systematic, and the third is from the uncertainty of Br(J/ψ → γη_c). No significant signal for the double Okubo-Zweig-Iizuka suppressed decay of η_c → ωϕ is observed, and the upper limit on the branching fraction is determined to be Br(η_c → ωϕ) < 2.5 × 10⁻⁴ at the 90% confidence level.en_US
dc.description.sponsorshipThis work is supported in part by National Key Basic Research Program of China under Contract No. 2015CB856700; National Natural Science Foundation of China (NSFC) under Contracts No. 11505034, No. 11375205, No. 11565006, No. 11647309, No. 11125525, No. 11235011, No. 11322544, No. 11335008, No. 11425524, and 11305090; Joint Large-Scale Scientific Facility Funds of the NSFC and CAS under Contracts No. 11179007, No. U1232201, and No. U1332201; CAS under Contracts No. KJCX2-YW-N29 and No. KJCX2-YW-N45; German Research Foundation DFG under Collaborative Research Center (CRC) Contracts No. 1044 and No. FOR 2359; Koninklijke Nederlandse Akademie van Wetenschappen (KNAW) under Contract No. 530-4CDP03; Ministry of Development of Turkey under Contract No. DPT2006K-120470; Russian Foundation for Basic Research under Contract No. 14-07-91152; U.S. Department of Energy under Contracts No. DE-FG02-05ER41374, No. DE-SC-0010504, No. DE-SC0012069, and No. DESC0010118; and WCU Program of National Research Foundation of Korea under Contract No. R32-2008-000-10155-0.en_US
dc.language.isoenen_US
dc.publisherAmer Physical Socen_US
dc.relation.urihttp://dx.doi.org/10.1103/PhysRevD.95.092004
dc.rights©2017 American Physical Societyen_US
dc.sourcePhysical Review D
dc.subjectBranching fractions (Nuclear physics)en_US
dc.subjectParticles (Nuclear physics)--Decayen_US
dc.subjectParticles (Nuclear physics)—Helicityen_US
dc.subjectMesonsen_US
dc.subjectNuclear spinen_US
dc.titleImproved Measurements of Branching Fractions for η_c → φφ and ωφen_US
dc.type.genrearticleen_US
dc.description.departmentSchool of Natural Sciences and Mathematicsen_US
dc.identifier.bibliographicCitationAblikim, M., M. N. Achasov, X. C. Ai, O. Albayrak, et al. 2017. "Improved measurements of branching fractions for η_c → φφ and ωφ." Physical Review D 95(9), doi:10.1103/PhysRevD.95.092004en_US
dc.identifier.volume95en_US
dc.identifier.issue9en_US
dc.contributor.utdAuthorLou, Xinchouen_US
dc.contributor.ORCID0000-0003-0867-2189 (Lou, X)en_US


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