Observation of ?(3770) ? ?J/?

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dc.authoridYang, Jing/0009-0004-8274-9863
dc.authoridLiu, Haibo/0000-0002-4213-2883
dc.authoridWang, Yue/0000-0001-8673-6358
dc.authoriddai, jianping/0000-0003-4802-4485
dc.authoridZhang, Xiaofeng/0000-0003-2738-3286
dc.authoridMesschendorp, Johan/0000-0001-6649-0549
dc.authoridZhang, Jiawei/0000-0001-9635-154X
dc.authorwosidzhao, sheng/JWO-6127-2024
dc.authorwosidzhang, zheng/KBQ-7815-2024
dc.authorwosidzhang, fei/KHU-5230-2024
dc.authorwosidwang, hui/GRS-4730-2022
dc.authorwosidCervelli, Alberto/X-7416-2018
dc.authorwosidYang, YiChen/KEI-0140-2024
dc.authorwosidlin, lin/KCZ-0185-2024
dc.contributor.authorAblikim, M.
dc.contributor.authorAchasov, M. N.
dc.contributor.authorAdlarson, P.
dc.contributor.authorAhmed, S.
dc.contributor.authorAlbrecht, M.
dc.contributor.authorAmoroso, A.
dc.contributor.authorÇetin, Serkant Ali
dc.date.accessioned2024-05-19T14:50:49Z
dc.date.available2024-05-19T14:50:49Z
dc.date.issued2023
dc.departmentİstinye Üniversitesien_US
dc.description.abstractUsing a data sample collected with the BESIII detector operating at the BEPCII storage ring, the Born cross section of the process e+e- -> eta J=psi at a center-of-mass energy pffisffi = 3.773 GeV is measured to be (8.88 +/- 0.87 +/- 0.42) pb. We fit the cross section line shape before correcting for the initial state radiation ffiffifromps = 3.773 to 4.600 GeV to obtain the branching fraction B(psi(3770) -> eta J=psi). We obtain B(psi(3770) -> eta J=psi) = (11.3 +/- 5.9 +/- 1.1) x 10-4 when the psi(3770) decay amplitude is added coher-ently to the other contributions, and (8.7 +/- 1.0 +/- 0.8) x 10-4 when it is added incoherently. Here the quoted uncertainties are statistical and systematic, respectively. In both cases, the statistical significance of psi(3770) resonance is above 7 sigma. This is the first time the decay psi(3770) -> eta J=psi is observed with a statistical significance greater than 5 sigma.en_US
dc.description.sponsorshipNational Key Research and Development Program of China [2020YFA0406300, 2020YFA0406400]; National Natural Science Foundation of China (NSFC) [11625523, 11635010, 11735014, 11822506, 11835012, 11935015, 11935016, 11935018, 11961141012, 12022510, 12025502, 12035009, 12035013, 12061131003]; key scientific research Projects of colleges and universities in Henan Province [21A140012]; Chinese Academy of Sciences (CAS) Large-Scale Scientific Facility Program; Joint Large-Scale Scientific Facility Funds of the NSFC; CAS [U1732263, U1832207, U2032108]; CAS Key Research Program of Frontier Sciences [QYZDJ-SSW-SLH040]; CAS Center for Excellence in Particle Physics (CCEPP) [100 TalentsProgram]; Shanghai Key Laboratory for Particle Physics and Cosmology; ERC [758462]; European Union [894790]; German Research Foundation DFG [443159800, CRC 1044, FOR 2359, GRK 2149]; Istituto Nazionale di Fisica Nucleare, Italy; Ministry of Development of Turkey [DPT2006K-120470]; National Science and Technology fund; Olle Engkvist Foundation [200-0605]; STFC (United Kingdom); Knut and Alice Wallenberg Foundation (Sweden) [2016.0157]; Royal Society, UK [DH140054, DH160214]; Swedish Research Council; U.S. Department of Energy [DE-FG02-05ER41374, DE-SC-0012069]en_US
dc.description.sponsorshipThis work is supported in part by National Key Research and Development Program of China under Contracts No. 2020YFA0406300, No. 2020YFA0406400; National Natural Science Foundation of China (NSFC) under Con-tracts No. 11625523, No. 11635010, No. 11735014, No. 11822506, No. 11835012, No. 11935015, No. 11935016, No. 11935018, No. 11961141012, No. 12022510, No. 12025502, No. 12035009, No. 12035013, No. 12061131003; The key scientific research Projects of colleges and universities in Henan Province (21A140012) ; the Chinese Academy of Sciences (CAS) Large-Scale Scientific Facility Program; Joint Large-Scale Scientific Facility Funds of the NSFC and CAS under Contracts No. U1732263, No. U1832207, No. U2032108; CAS Key Research Program of Frontier Sciences under Contract No. QYZDJ-SSW-SLH040; the CAS Center for Excellence in Particle Physics (CCEPP) ; 100 TalentsProgram of CAS; INPAC and Shanghai Key Laboratory for Particle Physics and Cosmology; ERC under Contract No. 758462; European Union Horizon 2020 research and innovation programme under Contract No. Marie Sklodowska-Curie grant agreement No. 894790; German Research Foundation DFG under Contracts No. 443159800, Collaborative Research Center CRC 1044, FOR 2359, GRK 2149; Istituto Nazionale di Fisica Nucleare, Italy; Ministry of Development of Turkey under Contract No. DPT2006K-120470; National Science and Technology fund; Olle Engkvist Foundation under Contract No. 200-0605; STFC (United Kingdom) ; The Knut and Alice Wallenberg Foundation (Sweden) under Contract No. 2016.0157; The Royal Society, UK under Contracts No. DH140054, No. DH160214; The Swedish Research Council; U.S. Department of Energy under Contracts No. DE-FG02-05ER41374, No. DE-SC-0012069.en_US
dc.identifier.doi10.1103/PhysRevD.107.L091101
dc.identifier.issn2470-0010
dc.identifier.issn2470-0029
dc.identifier.issue9en_US
dc.identifier.scopus2-s2.0-85160780435en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.urihttps://doi.org10.1103/PhysRevD.107.L091101
dc.identifier.urihttps://hdl.handle.net/20.500.12713/5812
dc.identifier.volume107en_US
dc.identifier.wosWOS:001021525600002en_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-Correctionsen_US
dc.subjectMonte-Carloen_US
dc.subjectDecayen_US
dc.subjectCharmoniumen_US
dc.titleObservation of ?(3770) ? ?J/?en_US
dc.typeArticleen_US

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