Measurement of e plus e-? AA? from 3.5106 to 4.6988 GeV and study of AA mass threshold enhancement

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dc.authoridGuo, Ruipeng/0000-0002-7195-7315
dc.authoridLi, Kun/0000-0002-3638-2974
dc.authoridChen, Jin/0009-0005-5844-635X
dc.authoridJanchiv, Shinebayar/0000-0003-1207-3322
dc.authoridwang, wenjuan/0000-0002-4220-8817
dc.authoridKabana, Sonia/0000-0003-0568-5750
dc.authoridWei, Wei/0000-0002-4109-3878
dc.authorwosidzhao, YZ/GXH-6401-2022
dc.authorwosidyang, xiao/KHT-9445-2024
dc.authorwosidChen, YiJun/KFS-9282-2024
dc.authorwosidLing, Li/JYO-7043-2024
dc.authorwosidtian, wang/ABG-8993-2021
dc.authorwosidliu, shanshan/JPA-0852-2023
dc.authorwosidGuo, Ruipeng/HJZ-0236-2023
dc.contributor.authorXu, Wei
dc.contributor.authorAblikim, M.
dc.contributor.authorAchasov, M. N.
dc.contributor.authorAdlarson, P.
dc.contributor.authorAlbrecht, M.
dc.contributor.authorAliberti, R.
dc.contributor.authorÇetin, Serkant Ali
dc.date.accessioned2024-05-19T14:50:48Z
dc.date.available2024-05-19T14:50:48Z
dc.date.issued2023
dc.departmentİstinye Üniversitesien_US
dc.description.abstractUsing data samples with a total integrated luminosity of approximately 18 fb-1 collected by the BESIII detector operating at the Beijing Electron-Positron Collider II, the process e+e- & RARR; A over bar A & eta; is studied at center-of-mass energies between 3.5106 and 4.6988 GeV. The Born cross section for the process e+e-& RARR; A over bar A & eta; is measured. No significant structure is observed in the Born cross section line shape. An enhancement near the AA over bar mass threshold is observed for the first time in the process. The structure can be described by an S-wave Breit-Wigner function. Neglecting contribution of excited A states and potential interferences, the mass and width are determined to be (2356 & PLUSMN; 7 & PLUSMN; 15) MeV=c2 and (304 & PLUSMN; 28 & PLUSMN; 54) MeV, respectively, where the first uncertainties are statistical and the second are systematic.en_US
dc.description.sponsorshipNational Key Ramp;D Program of China [2020YFA0406300, 2020YFA0406400]; National Natural Science Foundation of China (NSFC) [11635010, 1173 5014, 11835012, 11935015, 11935016, 11935018, 11961141012, 12022510, 1202 5502, 12035009, 12035013, 12192260, 12192261, 12192262, 12192263, 12192264, 12192265]; Chinese Academy of Sciences (CAS) Large-Scale Scientific Facility Program; CAS Center for Excellence in Particle Physics (CCEPP); Joint Large-Scale Scientific Facility Funds of the NSFC; CAS [U1832207]; 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 FoundationDFG [443159800, 455635585, CRC 1044, FOR5327, GRK 2149]; Istituto Nazionale di Fisica Nucleare, Italy; Ministry of Development of Turkey [DPT2006K-120470]; National Science and Techno-logy fund; National Science Research and Innovation Fund (NSRF) via the Program Management Unit for Human Resources amp; Institutional Development, Research and Innovation [B16F640076]; OlleEngkvist Foundation [200-0605]; Suranaree University of Technology (SUT) , Thailand Science Research and Innovation (TSRI); National Science Research and Innovation Fund (NSRF) [160355]; Royal Society, United Kingdom [DH140054, DH160214]; 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 No. 2020YFA0406300 and No. 2020YFA0406400; National Natural Science Foundation of China (NSFC) under Contracts No. 11635010, No. 1173 5014, No. 11835012, No. 11935015, No. 11935016, No. 11935018, No. 11961141012, No. 12022510, No. 1202 5502, No. 12035009, No. 12035013, No. 12192260, No. 12192261, No. 12192262, No. 12192263, No. 12192264, and No. 12192265; 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 Contract No. U1832207; CAS Key Research Program of Frontier Sciences under Contracts No. QYZDJ-SSW-SLH003 and 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; ERC under Contract No. 758462; European Union's Horizon 2020 research and innovation program under Marie Sklodowska-Curie grant agreement under Contract No. 894790; German Research FoundationDFG under Contracts No. 443159800 and No. 455635585, Collaborative Research Center CRC 1044, FOR5327, and GRK 2149; Istituto Nazionale di Fisica Nucleare, Italy; Ministry of Development of Turkey under Contract No. DPT2006K-120470; National Science and Techno-logy 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; OlleEngkvist 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, United Kingdom under Contracts No. DH140054 and No. DH160214; The Swedish Research Council; and U.S. Department of Energy under Contract No. DE-FG02-05ER41374.en_US
dc.identifier.doi10.1103/PhysRevD.107.112001
dc.identifier.issn2470-0010
dc.identifier.issn2470-0029
dc.identifier.issue11en_US
dc.identifier.scopus2-s2.0-85162260543en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.urihttps://doi.org10.1103/PhysRevD.107.112001
dc.identifier.urihttps://hdl.handle.net/20.500.12713/5810
dc.identifier.volume107en_US
dc.identifier.wosWOS:001023764900006en_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.subjectProgramen_US
dc.titleMeasurement of e plus e-? AA? from 3.5106 to 4.6988 GeV and study of AA mass threshold enhancementen_US
dc.typeArticleen_US

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