Measurement of Energy-Dependent Pair-Production Cross Section and Electromagnetic Form Factors of a Charmed Baryon

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dc.authoridKabana, Sonia/0000-0003-0568-5750
dc.authoridTian, Zhifu/0000-0002-6592-9844
dc.authoridChen, Qi/0000-0002-6568-7267
dc.authoridGuo, Ruipeng/0000-0002-7195-7315
dc.authoridzhang, yingying/0000-0001-7479-3398
dc.authoridLiu, Liang/0000-0002-6753-925X
dc.authoridSong, Weimin/0000-0003-1376-2293
dc.authorwosidSun, Yang/KHY-5117-2024
dc.authorwosidwang, yi/JYO-8193-2024
dc.authorwosidKabana, Sonia/ABF-5974-2020
dc.authorwosidli, yan/ITU-9719-2023
dc.authorwosidTian, Zhifu/ABD-8799-2021
dc.authorwosidli, sixuan/KGR-3943-2024
dc.authorwosidyang, ying/KHW-9378-2024
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.accessioned2024-05-19T14:51:05Z
dc.date.available2024-05-19T14:51:05Z
dc.date.issued2023
dc.departmentİstinye Üniversitesien_US
dc.description.abstractWe study the process e(+)e(-) -> Lambda(+)(c) (Lambda) over bar (-)(c) at twelve center-of-mass energies from 4.6119 to 4.9509 GeV using data samples collected by the BESIII detector at the BEPCII collider. The Born cross sections and effective form factors (vertical bar G(eff)vertical bar) are determined with unprecedented precision after combining the single and double-tag methods based on the decay process Lambda(+)(c) -> pK(-)pi(+). Flat cross sections around 4.63 GeV are obtained and no indication of the resonant structure Yo4630THORN, as reported by Belle, is found. In addition, no oscillatory behavior is discerned in the vertical bar G(eff)vertical bar energy dependence of Lambda(+)(c), in contrast to what is seen for the proton and neutron cases. Analyzing the cross section together with the polar-angle distribution of the. thornc baryon at each energy point, the moduli of electric and magnetic form factors (vertical bar G(E)vertical bar and vertical bar G(M)vertical bar) are extracted and separated. For the first time, the energy dependence of the form factor ratio vertical bar G(E)vertical bar/vertical bar G(M)vertical bar is observed, which can be well described by an oscillatory function.en_US
dc.description.sponsorshipNational Key R&D Program of China [2020YFA0406400, 2020YFA0406300]; National Natural Science Foundation of China (NSFC) [11635010, 11735014, 11835012, 11935015, 11935016, 11935018, 11961141012, 12022510, 12025502, 12035009, 12035013, 12061131003, 12122509, 12105276, 11625523, 12192260, 12192261, 12192262, 12192263, 12192264, 12192265, 12221005, 12225509, 12235017]; China Postdoctoral Science Foundation [2019M662152, 2020T130636]; Fundamental Research Funds for the Central Universities, University of Science and Technology of China [WK2030000053]; Chinese Academy of Sciences (CAS) Large-Scale Scientific Facility Program; CAS Center for Excellence in Particle Physics (CCEPP); NSFC [U1732263, U1832207, U1832103, U2032105, U2032111]; CAS [U1732263, U1832207, U1832103, U2032105, 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 of Mongolia; National Science Research and Innovation 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, the IHEP computing center and 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. 2020YFA0406400, No. 2020YFA0406300; National Natural Science Foundation of China (NSFC) under Contracts No. 11635010, No. 11735014, No. 11835012, No. 11935015, No. 11935016, No. 11935018, No. 11961141012, No. 12022510, No. 12025502, No. 12035009, No. 12035013, No. 12061131003, No. 12122509, No. 12105276, No. 11625523, No. 12192260, No. 12192261, No. 12192262, No. 12192263, No. 12192264, No. 12192265, No. 12221005, No. 12225509, No. 12235017; China Postdoctoral Science Foundation under Contracts No. 2019M662152, and No. 2020T130636; the Fundamental Research Funds for the Central Universities, University of Science and Technology of China under Contract No. WK2030000053; 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. U1732263, No. U1832207, No. U1832103, No. U2032105, No. U2032111; CAS Key Research Program of Frontier Sciences under Contracts Nos. QYZDJ-SSW-SLH003, 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; 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 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.en_US
dc.identifier.doi10.1103/PhysRevLett.131.191901
dc.identifier.issn0031-9007
dc.identifier.issn1079-7114
dc.identifier.issue19en_US
dc.identifier.pmid38000396en_US
dc.identifier.scopus2-s2.0-85177799416en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.urihttps://doi.org10.1103/PhysRevLett.131.191901
dc.identifier.urihttps://hdl.handle.net/20.500.12713/5871
dc.identifier.volume131en_US
dc.identifier.wosWOS:001173352900003en_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.subjectE(+)E(-)en_US
dc.subjectP(P)Over-Baren_US
dc.titleMeasurement of Energy-Dependent Pair-Production Cross Section and Electromagnetic Form Factors of a Charmed Baryonen_US
dc.typeArticleen_US

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