Measurement of the cross sections for e+e- ???+?- at center-of-mass energies between 2.00 and 3.08 GeV

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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.accessioned2024-05-19T14:34:35Z
dc.date.available2024-05-19T14:34:35Z
dc.date.issued2023
dc.departmentİstinye Üniversitesien_US
dc.description.abstractUsing data samples collected at center-of-mass energies between 2.000 and 3.080 GeV with the BESIII detector operating at the BEPCII collider, a partial-wave analysis is performed on the process e+e-???+?-. In addition to the dominant e+e-??? component, the e+e-?a2(1320)? process is also sizable, contributing up to 24% of the total reaction. The measured cross sections of the process e+e-???+?- are systematically higher than those of BABAR by more than 3? at center-of-mass energies between 2.000 and 2.300 GeV. In the cross section line shape for e+e-?a2(1320)?, a resonant structure is observed with a significance of 5.5?, with M=(2044±31±4) MeV/c2, ?=(163±69±24) MeV, and BR·?e+e-R=(34.6±17.1±6.0) eV or (137.1±73.3±2.1) eV. In the cross section line shape for e+e-???, an evidence of a dip structure around 2180 MeV/c2 is observed with statistical significance of 3.0?. © 2023 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the "https://creativecommons.org/licenses/by/4.0/"Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by SCOAP3.en_US
dc.description.sponsorshipDPT2006K-120470; B16F640076; U.S. Department of Energy, USDOE: DE-FG02-05ER41374; U.S. Department of Energy, USDOE; Horizon 2020 Framework Programme, H2020: 894790; Horizon 2020 Framework Programme, H2020; Deutsche Forschungsgemeinschaft, DFG: 455635585, CRC 1044, FOR5327, GRK 2149; Deutsche Forschungsgemeinschaft, DFG; National Natural Science Foundation of China, NSFC: 11635010, 11735014, 11835012, 11935015, 11935016, 11935018, 11961141012, 11975118, 12025502, 12035009, 12035013, 12061131003, 12192260, 12192261, 12192262, 12192263, 12192264, 12192265, 12205255, 12221005, 12225509, 12235017; National Natural Science Foundation of China, NSFC; Chinese Academy of Sciences, CAS; National Research Foundation of Korea, NRF: NRF-2022R1A2C1092335; National Research Foundation of Korea, NRF; Instituto Nazionale di Fisica Nucleare, INFN; Narodowe Centrum Nauki, NCN: 2019/35/O/ST2/02907; Narodowe Centrum Nauki, NCN; Vetenskapsrådet, VR; Natural Science Foundation of Gansu Province: 23JRRA578; Natural Science Foundation of Gansu Province; National Key Research and Development Program of China, NKRDPC: 2020YFA0406300, 2020YFA0406400, 2023YFA1606000; National Key Research and Development Program of China, NKRDPC; CAS Center for Excellence in Particle Physics, CCEPP: U1732263, U1832207, U2032105; CAS Center for Excellence in Particle Physics, CCEPP; Shanghai Key Laboratory for Particle Physics and Cosmology, SKLPPC; Key Project of Frontier Science Research of Chinese Academy of Sciences: QYZDJ-SSW-SLH003, QYZDJ-SSW-SLH040; Key Project of Frontier Science Research of Chinese Academy of Sciences; Institute of Nuclear and Particle Physics, Shanghai Jiao Tong University, INPACen_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. 2023YFA1606000, 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. 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. 12205255, No. 11975118; 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. U1832207, No. U1732263, No. U2032105; CAS Key Research Program of Frontier Sciences under Contracts No. QYZDJ-SSW-SLH003, No. QYZDJ-SSW-SLH040; 100 Talents Program of CAS; Natural Science Foundation of Gansu Province under Contract No. 23JRRA578; 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 program under Marie Sklodowska-Curie Grant Agreement under Contract No. 894790; German Research Foundation DFG under Contract 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 Award No. DE-FG02-05ER41374.en_US
dc.identifier.doi10.1103/PhysRevD.108.L111101
dc.identifier.issn2470-0010
dc.identifier.issue11en_US
dc.identifier.scopus2-s2.0-85180316969en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.urihttps://doi.org/10.1103/PhysRevD.108.L111101
dc.identifier.urihttps://hdl.handle.net/20.500.12713/4517
dc.identifier.volume108en_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherAmerican Physical Societyen_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.titleMeasurement of the cross sections for e+e- ???+?- at center-of-mass energies between 2.00 and 3.08 GeVen_US
dc.typeArticleen_US

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