Improved Measurements of Branching Fractions for η_c → φφ and ωφ
| dc.contributor.ORCID | 0000-0003-0867-2189 (Lou, X) | en_US |
| dc.contributor.author | Ablikim, M. | en_US |
| dc.contributor.author | Achasov, M. N. | en_US |
| dc.contributor.author | Ai, X. C. | en_US |
| dc.contributor.author | Albayrak, O. | en_US |
| dc.contributor.author | Albrecht, M. | en_US |
| dc.contributor.author | Ambrose, D. J. | en_US |
| dc.contributor.author | Amoroso, A. | en_US |
| dc.contributor.author | Lou, Xinchou | en_US |
| dc.contributor.author | BESIII Collaboration | en_US |
| dc.contributor.utdAuthor | Lou, Xinchou | en_US |
| dc.date.accessioned | 2018-05-24T18:18:20Z | |
| dc.date.available | 2018-05-24T18:18:20Z | |
| dc.date.created | 2017-05-11 | en_US |
| dc.date.issued | 2017-05-11 | en_US |
| dc.description.abstract | Using (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.department | School of Natural Sciences and Mathematics | en_US |
| dc.description.sponsorship | This 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.identifier.bibliographicCitation | Ablikim, 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.95.092004 | en_US |
| dc.identifier.issn | 2470-0010 | en_US |
| dc.identifier.issue | 9 | en_US |
| dc.identifier.uri | http://hdl.handle.net/10735.1/5763 | |
| dc.identifier.volume | 95 | en_US |
| dc.language.iso | en | en_US |
| dc.publisher | Amer Physical Soc | en_US |
| dc.relation.uri | http://dx.doi.org/10.1103/PhysRevD.95.092004 | |
| dc.rights | ©2017 American Physical Society | en_US |
| dc.source | Physical Review D | |
| dc.subject | Branching fractions (Nuclear physics) | en_US |
| dc.subject | Particles (Nuclear physics)--Decay | en_US |
| dc.subject | Particles (Nuclear physics)—Helicity | en_US |
| dc.subject | Mesons | en_US |
| dc.subject | Nuclear spin | en_US |
| dc.title | Improved Measurements of Branching Fractions for η_c → φφ and ωφ | en_US |
| dc.type.genre | article | en_US |