Evidence for the ?c(2S) ? ?+?-? decay

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dc.authoridMesschendorp, Johan/0000-0001-6649-0549
dc.authoridJanchiv, Shinebayar/0000-0003-1207-3322
dc.authoridQin, Jiajun/0000-0002-9956-2358
dc.authoridLi, Kun/0000-0002-3638-2974
dc.authoridWang, Ling/0000-0003-0272-2974
dc.authoridli, fangyu/0009-0009-8303-9157
dc.authoridxu, ye/0009-0007-9798-2723
dc.authorwosidZhu, Mengzhao/KFT-2345-2024
dc.authorwosidLi, Wen/JQI-4757-2023
dc.authorwosidzhen, li/KGK-6604-2024
dc.authorwosidZhang, Jianjun/KEJ-3941-2024
dc.authorwosidchen, xiao/KFQ-6812-2024
dc.authorwosidLi, Yan/JRW-0176-2023
dc.authorwosidwang, wei/JYP-7819-2024
dc.contributor.authorAblikim, M.
dc.contributor.authorAchasov, M. N.
dc.contributor.authorAdlarson, P.
dc.contributor.authorAlbrecht, M.
dc.contributor.authorAliberti, R.
dc.contributor.authorAmoroso, A.
dc.contributor.authorÇetin, Serkant Ali
dc.date.accessioned2024-05-19T14:50:46Z
dc.date.available2024-05-19T14:50:46Z
dc.date.issued2023
dc.departmentİstinye Üniversitesien_US
dc.description.abstractThe decay eta(c)(2S) -> pi(+)pi(-)eta is searched for through the radiative transition psi(3686) -> gamma eta(c)(2S) using 448 million psi(3686) events accumulated at the BESIII detector. The first evidence of eta(c)(2S) -> pi(+)pi(-)eta is found with a statistical significance of 3.5 sigma. The product of the branching fractions of psi(3686) -> gamma eta(c)(2S) and eta(c)(2S) -> pi(+)pi(-)eta is measured to be Br(psi(3686) -> gamma eta(c)(2S)) x Br(eta(c)(2S) -> pi(+)pi(-)eta) = (2.97 +/- 0.81 +/- 0.26) x 10(-6), where the first uncertainty is statistical and the second one is systematic. The branching fraction of the decay eta(c)(2S) -> pi(+)pi(-)eta is determined to be Br(eta(c)(2S) -> pi(+)pi(-)eta) = (42.4 +/- 11.6 +/- 3.8 +/- 30.3) x 10(-4), where the third uncertainty is transferred from the uncertainty of the branching fraction of psi(3686) -> gamma eta(c)(2S).en_US
dc.description.sponsorshipIHEP computing center; National Key R&D Program of China [2020YFA0406300, 2020YFA0406400]; National Natural Science Foundation of China (NSFC) [12192264, 12192265]; Chinese Academy of Sciences (CAS) Large-Scale Scientific Facility Program; Joint Large-Scale Scientific Facility Funds of the NSFC; CAS [U1832207, U2032110]; CAS Center for Excellence in Particle Physics (CCEPP); 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, CRC 1044, GRK 2149]; Istituto Nazionale di Fisica Nucleare, Italy; Ministry of Development of Turkey [DPT2006K-120470]; National Science Research and Innovation Fund (NSRF) via the Program Management Unit for Human Resources and Institutional Development, Research and Innovation [B16F640076]; Olle Engkvist Foundation [200-0605]; Suranaree University of Technology (SUT) ,Thailand Science Research and Innovation (TSRI); National Science Research and Innovation Fund (NSRF) [160355]; Royal Society, UK [DH140054, DH160214]; Swedish Research Council; U.S. Department of Energy [DE-FG02-05ER41374]; Marie Curie Actions (MSCA) [894790] Funding Source: Marie Curie Actions (MSCA)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 and No. 2020YFA0406400; National Natural Science Foundation of China (NSFC) No. 12192264, and No. 12192265; the Chinese Academy of Sciences (CAS) Large-Scale Scientific Facility Program; Joint Large-Scale Scientific Facility Funds of the NSFC and CAS under Contract Nos. U1832207, U2032110; the CAS Center for Excellence in Particle Physics (CCEPP) ; 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 programme under Marie Sklodowska-Curie grant agreement under Contract No. 894790; German Research Foundation DFG under Contract No. 443159800, Collaborative Research Center CRC 1044, GRK 2149; Istituto Nazionale di Fisica Nucleare, Italy; Ministry of Development of Turkey under Contract No. DPT2006K-120470; National Science and Technologyfund; National Science Research and Innovation Fund (NSRF) via the Program Management Unit for Human Resources and Institutional Development, Research and Innovation under Contract No. B16F640076; Olle Engkvist Foundation under Contract No. 200-0605; STFC (United Kingdom) ; Suranaree University of Technology (SUT) ,Thailand Science Research and Innovation (TSRI) , and National Science Research and Innovation Fund (NSRF) under Contract No. 160355; The Royal Society, UK under Contracts No. DH140054 and No. DH160214; The Swedish Research Council; U.S. Department of Energy under Contract No. DE-FG02-05ER41374.en_US
dc.identifier.doi10.1103/PhysRevD.107.052007
dc.identifier.issn2470-0010
dc.identifier.issn2470-0029
dc.identifier.issue5en_US
dc.identifier.scopus2-s2.0-85151394175en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.urihttps://doi.org10.1103/PhysRevD.107.052007
dc.identifier.urihttps://hdl.handle.net/20.500.12713/5802
dc.identifier.volume107en_US
dc.identifier.wosWOS:000989395900010en_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.subject[No Keywords]en_US
dc.titleEvidence for the ?c(2S) ? ?+?-? decayen_US
dc.typeArticleen_US

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