First observation of ?+ c ? ?K+ ?0 and evidence of ?+ c ? ?K+ ? + ? -

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dc.authoridSong, Weimin/0000-0003-1376-2293
dc.authoridLiu, Liang/0000-0002-6753-925X
dc.authoridGuo, Ruipeng/0000-0002-7195-7315
dc.authoridJanchiv, Shinebayar/0000-0003-1207-3322
dc.authoridWang, Xiu-Jie/0000-0001-7865-0204
dc.authoridTian, Zhifu/0000-0002-6592-9844
dc.authorwosidLi, J N/JXL-5833-2024
dc.authorwosidjiang, lei/IWE-1124-2023
dc.authorwosidSpataro, Stefano/E-1305-2012
dc.authorwosidzhu, tengjiao/AHC-6783-2022
dc.authorwosidZhang, Aiqiang/HIK-0611-2022
dc.authorwosidPing, Jinglei/F-2196-2017
dc.authorwosidSong, Weimin/AAJ-5415-2020
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.accessioned2024-05-19T14:50:57Z
dc.date.available2024-05-19T14:50:57Z
dc.date.issued2024
dc.departmentİstinye Üniversitesien_US
dc.description.abstractWe present the first observation of the singly Cabibbo-suppressed decay Lambda thorn c ->Lambda K thorn pi 0with asignificance of5.7 sigma and the first evidence of Lambda thorn c ->Lambda K thorn pi thorn pi-decay with a significance of3.1 sigma,basedone thorn e-annihilation data recorded by the BESIII detector at the BEPCII collider. The data correspond to anintegrated luminosity of6.4fb-1, in the center-of-mass energy range from 4.600 to 4.950 GeV. Wedetermine the branching fractions of Lambda thorn c ->Lambda K thorn pi 0and Lambda thorn c ->Lambda K thorn pi thorn pi-relative to their Cabibbo-favored counterparts to beBo Lambda thorn c ->Lambda K thorn pi 0 thorn Bo Lambda thorn c ->Lambda pi thorn pi 0 thorn 1/4o2.090.39stat0.07syst thorn x10-2andBo Lambda thorn c ->Lambda K thorn pi thorn pi- thorn Bo Lambda thorn c ->Lambda pi thorn pi thorn pi- thorn 1/4o1.130.41stat0.06syst thorn x10-2, respectively. Moreover, by combining our measured result with theworld average ofBo Lambda thorn c ->Lambda pi thorn pi 0 thorn , we obtain the branching fractionBo Lambda thorn c ->Lambda K thorn pi 0 thorn 1/4o1.490.27stat0.05syst0.08ref thorn x10-3. This result significantly departs from theoretical predictionsbased on quarkSUo3 thorn flavor symmetry, which is underpinned by the presumption of meson pairS-waveamplitude dominanceen_US
dc.description.sponsorshipInnovation Fund (NSRF) via the Program Management Unit for Human Resources & 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]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 Nos. 2020YFA0406400, 2020YFA0406300; National Natural Science Foundation 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; European Union's 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, 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 & 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.r Contracts 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 andr 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.en_US
dc.identifier.doi10.1103/PhysRevD.109.032003
dc.identifier.issn2470-0010
dc.identifier.issn2470-0029
dc.identifier.issue3en_US
dc.identifier.scopus2-s2.0-85185324312en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.urihttps://doi.org10.1103/PhysRevD.109.032003
dc.identifier.urihttps://hdl.handle.net/20.500.12713/5845
dc.identifier.volume109en_US
dc.identifier.wosWOS:001183257400002en_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.subjectQuark-Diagram Analysisen_US
dc.subjectDecaysen_US
dc.titleFirst observation of ?+ c ? ?K+ ?0 and evidence of ?+ c ? ?K+ ? + ? -en_US
dc.typeArticleen_US

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