Observation of a near-threshold enhancement in the ?(?)over-bar mass spectrum from e+e- ? ??(?)over-bar at ?S is from 3.51 to 4.60 GeV

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dc.authoridLiu, Zhiyu/0000-0001-8351-1268|Janchiv, Shinebayar/0000-0003-1207-3322|Gradl, Wolfgang/0000-0002-9974-8320|Song, Weimin/0000-0003-1376-2293|Spataro, Stefano/0000-0001-9601-405X|Liu, Zhiqiang/0000-0003-2982-8381|Han, Jian/0000-0002-0647-4050|Liu, Liang/0000-0002-6753-925X|Farineli, Riccardo/0000-0002-7972-9093|xu, ye/0009-0007-9798-2723|Chen, Qi/0000-0002-6568-7267|Zhang, Jiawei/0000-0001-9635-154X|Mangoni, Alessio/0000-0002-4786-6632|Sheng, Jin-Huan/0000-0002-2655-6301|wang, qi/0000-0002-2794-6897|Calligaris, Luigi/0000-0002-9951-9448|Wu, Xin/0000-0001-7655-389X|Yuncu, Alperen/0000-0001-9696-9331|Messchendorp, Johan/0000-0001-6649-0549|Zhemchugov, Alexey/0000-0002-3360-4965|Lavezzi, Lia/0000-0002-4928-8151|Guo, Ruipeng/0000-0002-7195-7315|Li, Xiaoyu/0009-0006-9840-6704|Wang, Yue/0000-0001-8673-6358|Wang, Yunwen/0009-0008-3083-7799|Kolcu, Onur Bugra/0000-0002-9177-1286|Cetin, Serkant Ali/0000-0001-5050-8441|Lane, Jake/0000-0002-5816-9488|Adlarson, Patrik/0000-0001-6280-3851|Kuessner, Meike/0000-0002-0028-0490|Schoenning, Karin/0000-0002-3490-9584|Amoroso, Antonio/0000-0002-3095-8610|Lange, Jens Soren/0000-0003-0234-0474|Achasov, Mikhail/0000-0002-9400-8622|, tong/0000-0001-7696-1252|Greco, Michela/0000-0002-7299-7829|Johansson, Tord/0000-0002-6945-716X|Kliemt, Ralf/0000-0002-6013-3329|Qi, Hongrong/0000-0002-9325-2308|Bortone, Alberto/0000-0003-1577-5004|Cossio, Fabio/0000-0003-0454-3144|Aliberti, Riccardo/0000-0003-3500-4012
dc.authorwosidLi, Shuyao/JRY-8603-2023
dc.authorwosidzhang, zhenyu/HOA-8440-2023
dc.authorwosidLiu, Zhiyu/JNR-8043-2023
dc.authorwosidgao, yi/HCI-8298-2022
dc.authorwosidYang, Hai/JQI-4956-2023
dc.authorwosidli, lan/KCJ-5061-2024
dc.authorwosidXIONG, LIU/JOK-5886-2023
dc.contributor.authorAblikim, M.
dc.contributor.authorAchasov, M. N.
dc.contributor.authorAdlarson, P.
dc.contributor.authorAhmed, S.
dc.contributor.authorAlbrecht, M.
dc.contributor.authorAliberti, R.
dc.contributor.authorÇetin, Serkant Ali
dc.date.accessioned2024-07-18T20:47:08Z
dc.date.available2024-07-18T20:47:08Z
dc.date.issued2021
dc.departmentFakülteler, Mühendislik ve Doğa Bilimleri Fakültesi, Enerji Sistemleri Mühendisliği Bölümüen_US
dc.description.abstractThe process e(+)e(-) -> phi Lambda(Lambda) over bar is studied using data samples collected with the BESIII detector at the BEPCII Collider at center of mass energies root S ranging from 3.51 GeV to 4.60 GeV. An enhancement is observed near the threshold of Lambda(Lambda) over bar. The lineshape of this enhancement is studied in different approaches, including fit with a Breit-Wiper function or a reversed exponential function. The Breit-Wigner function has a mass of (2262 +/- 4 +/- 28) McV/c(2) and a width of (72 +/- 5 +/- 43) MeV, where the quoted uncertainties are statistical and systematic, respectively. The rising rate of the reversed exponential function is measured as 33 +/- 11 +/- 6 MeV/c(2). For the Lambda(Lambda) over bar system, the J(PC) quantum numbers of 0(-+) and 0(+)(+) are rejected, while other J(PC) hypotheses are possible, according to the helicity-angle study. The energy-dependent cross section of the e(+)e(-) -> phi Lambda(Lambda) over bar process is measured for the first time in this energy region, and contributions from excited psi states and vector charmoniumlike Y-states are investigated.en_US
dc.description.sponsorshipNational Key Research and Development Program of China [2020YFA0406300, 2020YFA0406400]; National Natural Science Foundation of China (NSFC) [11625523, 11635010, 11735014, 11822506, 11835012, 11935015, 11935016, 11935018, 11961141012]; Chinese Academy of Sciences (CAS) Large-Scale Scientific Facility Program; Joint LargeScale Scientific Facility Fund of the NSFC [U1732263, U1832207]; Joint LargeScale Scientific Facility Fund of the CAS [U1732263, U1832207]; CAS Key Research Program of Frontier Sciences [QYZDJ-SSW-SLH003, QYZDJ-SSWSLH040]; 100 Talents Program of CAS; Institute of Nuclear and Particle Physics, Astronomy and Cosmology (INPAC); Shanghai Key Laboratory for Particle Physics and Cosmology; ERC [758462]; European Union [894790]; German Research Foundation DFG [443159800, CRC 1044, FOR 2359, GRK 214]; Istituto Nazionale di Fisica Nucleare, Italy; Ministry of Development of Turkey [DPT2006K120470]; National Science and Technology fund; Olle Engkvist Foundation [200-0605]; STFC (United Kingdom); Knut and Alice Wallenberg Foundation (Sweden) [2016.0157]; Royal Society, UK [DH140054, DH160214]; Swedish Research Council; U.S. Department of Energy [DE-FG0205ER41374, DE-SC-0012069]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 Research and Development Program of China under Contracts No. 2020YFA0406300 and No. 2020YFA0406400; National Natural Science Foundation of China (NSFC) under Contracts No. 11625523, No. 11635010, No. 11735014, No. 11822506, No. 11835012, No. 11935015, No. 11935016, No. 11935018, and No. 11961141012; the Chinese Academy of Sciences (CAS) Large-Scale Scientific Facility Program; Joint LargeScale Scientific Facility Funds of the NSFC and CAS under Contracts No. U1732263 and No. U1832207; CAS Key Research Program of Frontier Sciences under Contracts No. QYZDJ-SSW-SLH003 and No. QYZDJ-SSWSLH040; 100 Talents Program of CAS; Institute of Nuclear and Particle Physics, Astronomy and Cosmology (INPAC) and Shanghai Key Laboratory for Particle Physics andCosmology; ERCunderContractNo. 758462; European Union Horizon 2020 research and innovation programme under Contract No. Marie Sklodowska-Curie Grant Agreement No. 894790; German Research Foundation DFG under Contracts No. 443159800, Collaborative Research Center CRC 1044, FOR 2359, FOR 2359, GRK 214; Istituto Nazionale di Fisica Nucleare, Italy; Ministry of Development of Turkey under Contract No. DPT2006K120470; National Science and Technology fund; Olle Engkvist Foundation under Contract No. 200-0605; STFC (United Kingdom); The Knut and Alice Wallenberg Foundation (Sweden) under Contract No. 2016.0157; The Royal Society, UK under Contracts No. DH140054 and No. DH160214; The Swedish Research Council; U.S. Department of Energy under Contracts No. DE-FG0205ER41374 and No. DE-SC-0012069.en_US
dc.identifier.doi10.1103/PhysRevD.104.052006
dc.identifier.issn2470-0010
dc.identifier.issn2470-0029
dc.identifier.issue5en_US
dc.identifier.scopus2-s2.0-85116160100en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.urihttps://doi.org/10.1103/PhysRevD.104.052006
dc.identifier.urihttps://hdl.handle.net/11411/7688
dc.identifier.volume104en_US
dc.identifier.wosWOS:000704614500001en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.institutionauthorÇetin, Serkant Ali
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.subjectMonte-Carloen_US
dc.subjectDecayen_US
dc.subjectEnergiesen_US
dc.titleObservation of a near-threshold enhancement in the ?(?)over-bar mass spectrum from e+e- ? ??(?)over-bar at ?S is from 3.51 to 4.60 GeVen_US
dc.typeArticleen_US

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