Search for ηc (2S) →k+K-η′ decay

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dc.authorscopusidSerkant Ali Çetin / 34567544400
dc.authorscopusidOnur Buğra Kolcu / 57936993500
dc.authorwosidSerkant Ali Çetin / AGF-0147-2022
dc.authorwosidOnur Buğra Kolcu / P-4990-2015
dc.contributor.authorAblikim, M.
dc.contributor.authorAchasov, M.N.
dc.contributor.authorAdlarson, P.
dc.contributor.authorÇetin, Serkant Ali
dc.contributor.authorKolcu, Onur Buğra
dc.contributor.authorUman, Igor
dc.date.accessioned2025-04-18T09:50:23Z
dc.date.available2025-04-18T09:50:23Z
dc.date.issued2025
dc.departmentİstinye Üniversitesi, Rektörlük, Temel Bilimler Bölümü
dc.description.abstractUsing (2.712±0.014)×109 ψ(2S) events collected with the BESIII detector operating at the BEPCII, we search for the ηc(2S)→K+K-η′ decay. Its decay branching fraction is measured to be (11.11±4.67(stat)±1.82(syst)±4.24(extr))×10-4, where the first uncertainty is statistical, the second is systematic, and the third uncertainty is from the branching fraction of the ψ(2S)→γηc(2S) decay. The statistical significance is 2.8σ. The upper limit on the product branching fraction B[ψ(2S)→γηc(2S)]×B[ηc(2S)→K+K-η′] is set to be 0.94×10-6 at 90% confidence level. In addition, the branching fractions of χc1→K+K-η′ and χc2→K+K-η′ are updated to be (8.48±0.10(stat)±0.47(syst))×10-4 and (1.53±0.04(stat)±0.08(syst))×10-4, respectively. The precision is improved by twofold. © 2025 authors. Published by the American Physical Society.
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, No. 2023YFA1606000; National Natural Science Foundation of China (NSFC) under Contracts No. 11635010, No. 11735014, No. 11835012, No. 11935015, No. 11935016, No. 11935018, No. 11961141012, No. 12025502, No. 12035009, No. 12035013, No. 12061131003, No. 12192260, No. 12192261, No. 12192262, No. 12192263, No. 12192264, No. 12192265, No. 12221005, No. 12225509, No. 12235017, No. 12150004, No. 12375070; Program of Science and Technology Development Plan of Jilin Province of China under Contracts No. 20210508047RQ and No. 20230101021JC; 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 Contracts No. U2032108, No. U1832207; CAS Key Research Program of Frontier Sciences under Contracts No. QYZDJ-SSW-SLH003, No. QYZDJ-SSW-SLH040; Shanghai Leading Talent Program of Eastern Talent Plan under Contract No. JLH5913002; 100 Talents Program of CAS; The Institute of Nuclear and Particle Physics (INPAC) and Shanghai Key Laboratory for Particle Physics and Cosmology; European Union\u2019s Horizon 2020 research and innovation programme under Marie Sklodowska-Curie grant agreement under Contract No. 894790; German Research Foundation DFG under Contracts No. 455635585, Collaborative Research Center CRC 1044, No. FOR5327, No. 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 & 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 Contract No. DE-FG02-05ER41374.
dc.identifier.citationAblikim, M., Achasov, M. N., Adlarson, P., Afedulidis, O., Ai, X. C., Aliberti, R., ... & Huang, K. X. (2025). Search for η c (2 S)→ K+ K-η′ decay. Physical Review D, 111(1), 012004.
dc.identifier.doi10.1103/PhysRevD.111.012004
dc.identifier.issn24700010
dc.identifier.issue1
dc.identifier.scopus2-s2.0-85217242171
dc.identifier.scopusqualityQ1
dc.identifier.urihttp://dx.doi.org/10.1103/PhysRevD.111.012004
dc.identifier.urihttps://hdl.handle.net/20.500.12713/6879
dc.identifier.volume111
dc.indekslendigikaynakScopus
dc.institutionauthorÇetin, Serkant Ali
dc.institutionauthorKolcu, Onur Buğra
dc.institutionauthorUman, Igor
dc.institutionauthoridSerkant Ali Çetin / 0000-0001-5050-8441
dc.institutionauthoridOnur Buğra Kolcu / 0000-0002-9177-1286
dc.language.isoen
dc.publisherAmerican Physical Society
dc.relation.ispartofPhysical Review D
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.titleSearch for ηc (2S) →k+K-η′ decay
dc.typeArticle

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