Improved measurement of the branching fractions for J/? ? ??0, ??, and ???

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dc.authoridYu, Chongxiu/0000-0002-8221-6221
dc.authoridLi, Xiaoyu/0000-0001-8017-207X
dc.authoridWang, Ling/0000-0003-0272-2974
dc.authoridLiu, Donghua/0000-0002-5830-9540
dc.authoridozok, ferhat/0000-0001-9630-7362
dc.authoridLi, Yuanyuan/0000-0002-4955-1159
dc.authoridWang, Ling/0000-0003-0272-2974
dc.authorwosidLiu, yuqing/KEI-3260-2024
dc.authorwosidyu, hui/KDO-3946-2024
dc.authorwosidliu, xinyi/KFB-4466-2024
dc.authorwosidchen, xian/KHW-2227-2024
dc.authorwosidYu, Chongxiu/KDM-7354-2024
dc.authorwosidWang, Zejun/KBB-8454-2024
dc.authorwosidzhang, can/KHC-5357-2024
dc.contributor.authorAblikim, M.
dc.contributor.authorAchasov, M. N.
dc.contributor.authorAdlarson, P.
dc.contributor.authorAi, X. C.
dc.contributor.authorAliberti, R.
dc.contributor.authorAmoroso, A.
dc.contributor.authorÇetin, Serkant Ali
dc.date.accessioned2024-05-19T14:50:52Z
dc.date.available2024-05-19T14:50:52Z
dc.date.issued2023
dc.departmentİstinye Üniversitesien_US
dc.description.abstractUsing a data sample of (1.0087 +/- 0.0044) x 10(10) J/psi events collected with the BESIII detector, the decays of J/psi -> gamma pi(0) (eta, eta ') -> gamma gamma gamma are studied. Newly measured branching fractions are B(J/psi -> gamma pi(0)) = (3.34 +/- 0.02 +/- 0.09) x 10(-5), B(J/psi -> gamma eta) = (1.096 +/- 0.001 +/- 0.019) x 10(-3), and B(J/psi -> gamma eta ') = (5.40 +/- 0.01 +/- 0.11) x 10(-3), where the first uncertainties are statistical and the second are systematic. These results are consistent with the world average values within two standard deviations. The ratio of partial widths Gamma(J/psi -> gamma eta ')/Gamma(J/psi -> gamma eta) is measured to be 4.93 +/- 0.13. The singlet-octet pseudoscalar mixing angle theta(P) is determined to be theta(P) = -(22.11 +/- 0.26)degrees or -(19.34 +/- 0.34)degrees with two different phenomenological models.en_US
dc.description.sponsorshipNational Key R&D Program of China [2020YFA0406300, 2020YFA0406400]; National Natural Science Foundation of China (NSFC) [12105132, 11905092, 12225509, 11635010, 11735014, 11835012, 11935015, 11935016, 11935018, 11961141012, 12022510, 12025502, 12035009, 12035013, 12061131003, 12192260, 12192261, 12192262, 12192263, 12192264, 12192265, 12221005, 12235017, 11705078]; Chinese Academy of Sciences (CAS) Large-Scale Scientific Facility Program; CAS Center for Excellence in Particle Physics (CCEPP); Joint Large-Scale Scientific Facility Funds of the NSFC; CAS [U1832207]; CAS Key Research Program of Frontier Sciences [QYZDJ-SSW-SLH003, QYZDJ-SSW-SLH040]; 100 Talents Program of CAS; Institute of Nuclear and Particle Physics (INPAC); Shanghai Key Laboratory for Particle Physics and Cosmology; ERC [758462]; European Union [894790]; German Research Foundation DFG [443159800, 455635585, CRC 1044, FOR5327, GRK 2149]; Istituto Nazionale di Fisica Nucleare, Italy; Ministry of Development of Turkey [DPT2006K-120470]; National Research Foundation of Korea [NRF-2022R1A2C1092335]; National Science and Technology fund of Mongolia; National Science Research and Innovation Fund (NSRF) via the Program Management Unit for Human Resources and Institutional Development, Research and Innovation of Thailand [B16F640076]; Polish National Science Centre [2019/35/O/ST2/02907]; Swedish Research Council; U.S. Department of Energy [DE-FG02-05ER41374]; China Postdoctoral Science Foundation [2021M693181]; Start-up Foundation of Liaoning Province [2019-BS-113]; Education Department of Liaoning Province Scientific Research Foundation [LQN201902]; Foundation of Innovation Team 2020, Liaoning Province; Opening Foundation of Songshan Lake Materials Laboratory [2021SLABFK04]en_US
dc.description.sponsorshipThe BESIII Collaboration thanks the staff of BEPCII and the IHEP computing center for their strong support. This work is supported in part by National Key R&D Program of China under Contracts No. 2020YFA0406300, No. 2020YFA0406400; National Natural Science Foundation of China (NSFC) under Contracts No. 12105132, No. 11905092, No. 12225509, No. 11635010, No. 11735014, No. 11835012, No. 11935015, No. 11935016, No. 11935018, No. 11961141012, No. 12022510, No. 12025502, No. 12035009, No. 12035013, No. 12061131003, No. 12192260, No. 12192261, No. 12192262, No. 12192263, No. 12192264, No. 12192265, No. 12221005, No. 12235017, No. 11705078; the Chinese Academy of Sciences (CAS) Large-Scale Scientific Facility Program; the CAS Center for Excellence in Particle Physics (CCEPP); Joint Large-Scale Scientific Facility Funds of the NSFC and CAS under Contract No. U1832207; CAS Key Research Program of Frontier Sciences under Contracts No. QYZDJ-SSW-SLH003, No. QYZDJ-SSW-SLH040; 100 Talents Program of CAS; The Institute of Nuclear and Particle Physics (INPAC) and Shanghai Key Laboratory for Particle Physics and Cosmology; ERC under Contract No. 758462; European Union's Horizon 2020 research and innovation program under Marie Sklodowska-Curie Grant Agreement under Contract No. 894790; German Research Foundation DFG under Contracts No. 443159800, No. 455635585, Collaborative Research Center CRC 1044, FOR5327, GRK 2149; Istituto Nazionale di Fisica Nucleare, Italy; Ministry of Development of Turkey under Contract No. DPT2006K-120470; National Research Foundation of Korea under Contract No. NRF-2022R1A2C1092335; National Science and Technology fund of Mongolia; National Science Research and Innovation Fund (NSRF) via the Program Management Unit for Human Resources and Institutional Development, Research and Innovation of Thailand under Contract No. B16F640076; Polish National Science Centre under Contract No. 2019/35/O/ST2/02907; The Swedish Research Council; U.S. Department of Energy under Award No. DE-FG02-05ER41374; China Postdoctoral Science Foundation under Contract No. 2021M693181; the Ph.D. Start-up Foundation of Liaoning Province under Contract No. 2019-BS-113; Education Department of Liaoning Province Scientific Research Foundation under Contract No. LQN201902; Foundation of Innovation Team 2020, Liaoning Province; Opening Foundation of Songshan Lake Materials Laboratory, Grant No. 2021SLABFK04.en_US
dc.identifier.doi10.1103/PhysRevD.108.092002
dc.identifier.issn2470-0010
dc.identifier.issn2470-0029
dc.identifier.issue9en_US
dc.identifier.scopus2-s2.0-85180970742en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.urihttps://doi.org10.1103/PhysRevD.108.092002
dc.identifier.urihttps://hdl.handle.net/20.500.12713/5827
dc.identifier.volume108en_US
dc.identifier.wosWOS:001096897800001en_US
dc.identifier.wosqualityN/Aen_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherAmer Physical Socen_US
dc.relation.ispartofPhysical Review Den_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.snmz20240519_kaen_US
dc.subjectRadiative Decaysen_US
dc.subjectTofen_US
dc.titleImproved measurement of the branching fractions for J/? ? ??0, ??, and ???en_US
dc.typeArticleen_US

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