Precision Measurement of the Decay ?+ ? p? in the Process J/?? ?+(?)over-bar-

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dc.authoridFarineli, Riccardo/0000-0002-7972-9093
dc.authoridKabana, Sonia/0000-0003-0568-5750
dc.authoridGuo, Ruipeng/0000-0002-7195-7315
dc.authoridYuncu, Alperen/0000-0001-9696-9331
dc.authoridxu, ye/0009-0007-9798-2723
dc.authoridChen, Qi/0000-0002-6568-7267
dc.authoriddai, jianping/0000-0003-4802-4485
dc.authorwosidLiu, min/JXW-8493-2024
dc.authorwosidSpataro, Stefano/E-1305-2012
dc.authorwosidchen, minghui/KFR-8832-2024
dc.authorwosidzhao, yan/JNT-6961-2023
dc.authorwosidFarineli, Riccardo/GVS-7124-2022
dc.authorwosidLI, HAO/KBD-0866-2024
dc.authorwosidLU, lpp pp/JFJ-9011-2023
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.accessioned2024-05-19T14:51:00Z
dc.date.available2024-05-19T14:51:00Z
dc.date.issued2023
dc.departmentİstinye Üniversitesien_US
dc.description.abstractUsing (10 087 +/- 44) x 10(6) J/psi events collected with the BESIII detector, the radiative hyperon decay Sigma(+) -> p gamma is studied at an electron-positron collider experiment for the first time. The absolute branching fraction is measured to be (0.996 +/- 0.021(stat) +/- 0.018(syst)) x 10(-3), which is lower than its world average value by 4.2 standard deviations. Its decay asymmetry parameter is determined to be -0.652 +/- 0.056(stat) +/- 0.020(syst). The branching fraction and decay asymmetry parameter are the most precise to date, and the accuracies are improved by 78% and 34%, respectively.en_US
dc.description.sponsorshipNational Key R&D Program of China [2020YFA0406300, 2020YFA0406400]; National Natural Science Foundation of China (NSFC) [11335008, 11625523, 11635010]; Chinese Academy of Sciences (CAS) Large-Scale Scientific Facility Program; CAS Center for Excellence in Particle Physics (CCEPP); NSFC [U1732263, U1832103, U1832207, U2032111]; CAS [U1732263, U1832103, U1832207, U2032111]; 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; National Science Research and Innovation Fund (NSRF) via the Program Management Unit for Human Resources & Institutional Development, Research and Innovation [B16F640076]; Polish National Science Centre [2019/35/O/ST2/02907]; Suranaree University of Technology (SUT); National Science Research and Innovation Fund (NSRF) [160355]; Royal Society, UK [DH160214]; Swedish Research Council; U.S. Department of Energy [DE-FG02-05ER41374]; Double First-Class university project foundation of USTC; Thailand Science Research and Innovation (TSRI)en_US
dc.description.sponsorshipThe authors thank Professor L. S. Geng and Professor X. G. He for helpful discussion. The BESIII Collaboration thanks the staff of BEPCII and the IHEP computing centerand the supercomputing center of USTC 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. 11335008, No. 11625523, No. 11635010, 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. U1732263, No. U1832103, No. U1832207, No. U2032111; 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; The Double First-Class university project foundation of USTC; 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 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; National Science Research and Innovation Fund (NSRF) via the Program Management Unit for Human Resources & Institutional Development, Research and Innovation under Contract No. B16F640076; Polish National Science Centre under Contract No. 2019/35/O/ST2/02907; 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 Contract No. DH160214; The Swedish Research Council; U.S. Department of Energy under Contract No. DE-FG02-05ER41374.en_US
dc.identifier.doi10.1103/PhysRevLett.130.211901
dc.identifier.issn0031-9007
dc.identifier.issn1079-7114
dc.identifier.issue21en_US
dc.identifier.pmid37295102en_US
dc.identifier.scopus2-s2.0-85161644119en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.urihttps://doi.org10.1103/PhysRevLett.130.211901
dc.identifier.urihttps://hdl.handle.net/20.500.12713/5857
dc.identifier.volume130en_US
dc.identifier.wosWOS:001020582100001en_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 Lettersen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.snmz20240519_kaen_US
dc.subjectRadiative Hyperon Decaysen_US
dc.subjectBranching Ratioen_US
dc.subjectAsymmetry Parameteren_US
dc.titlePrecision Measurement of the Decay ?+ ? p? in the Process J/?? ?+(?)over-bar-en_US
dc.typeArticleen_US

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