Observation of the electromagnetic Dalitz decay D*0 ? D0e+e-

dc.authoridQin, Jiajun/0000-0002-9956-2358|Farineli, Riccardo/0000-0002-7972-9093|Spataro, Stefano/0000-0001-9601-405X|Li, Xiaoyu/0009-0006-9840-6704|Wang, Yunwen/0009-0008-3083-7799|Zhang, Jiawei/0000-0001-9635-154X|Wang, Yue/0000-0001-8673-6358|Wu, Xin/0000-0001-7655-389X|Gradl, Wolfgang/0000-0002-9974-8320|wang, qi/0000-0002-2794-6897|Kolcu, Onur Bugra/0000-0002-9177-1286|Liu, Zhiyu/0000-0001-8351-1268|Han, Jian/0000-0002-0647-4050|Liu, Haibo/0000-0002-4213-2883|Song, Weimin/0000-0003-1376-2293|Janchiv, Shinebayar/0000-0003-1207-3322|Mangoni, Alessio/0000-0002-4786-6632|Yang, Jing/0009-0004-8274-9863|Lavezzi, Lia/0000-0002-4928-8151|Ren, Jie/0000-0003-2806-7226|Calligaris, Luigi/0000-0002-9951-9448|Pathak, Atanu/0000-0001-9861-2942|Zhu, Ren-Yuan/0000-0003-3091-7461|chen, bin/0000-0002-3398-1314|Yuncu, Alperen/0000-0001-9696-9331|Sheng, Jin-Huan/0000-0002-2655-6301|Messchendorp, Johan/0000-0001-6649-0549|Adlarson, Patrik/0000-0001-6280-3851|Achasov, Mikhail/0000-0002-9400-8622|Aliberti, Riccardo/0000-0003-3500-4012|Schoenning, Karin/0000-0002-3490-9584|Amoroso, Antonio/0000-0002-3095-8610|BALOSSINO, Ilaria/0000-0001-9646-4042|Qi, Hongrong/0000-0002-9325-2308|Lane, Jake/0000-0002-5816-9488|Johansson, Tord/0000-0002-6945-716X|Kliemt, Ralf/0000-0002-6013-3329|Mezzadri, Giulio/0000-0003-0838-9631|, tong/0000-0001-7696-1252|Lange, Jens Soren/0000-0003-0234-0474|Kuessner, Meike/0000-0002-0028-0490|Muramatsu, Hajime/0000-0003-0305-4461|Greco, Michela/0000-0002-7299-7829
dc.authorwosidYang, Fan/JVO-8611-2024
dc.authorwosidQin, Jiajun/AAK-8695-2020
dc.authorwosidli, sixuan/KGR-3943-2024
dc.authorwosidHuang, Yu/KDM-9182-2024
dc.authorwosidzhao, YZ/GXH-6401-2022
dc.authorwosidlin, yuan/JXL-9592-2024
dc.authorwosidWang, Zhiquan/HHS-6768-2022
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.accessioned2024-07-18T20:47:09Z
dc.date.available2024-07-18T20:47:09Z
dc.date.issued2021
dc.departmentFakülteler, Mühendislik ve Doğa Bilimleri Fakültesi, Enerji Sistemleri Mühendisliği Bölümüen_US
dc.description.abstractBased on 3.19 fb(-1) of e(+) e(-) collision data accumulated at the center-of-mass energy 4.178 GeV with the BESIII detector operating at the BEPCII collider, the electromagnetic Dalitz decay D*(0) -> D(0)e(+)e(-) is observed for the first time with a statistical significance of 13.2 sigma. The ratio of the branching fraction of D*(0) -> D(0)e(+)e(-) to that of D*(0) -> D-0 gamma is measured to be (11.08 +/- 0.76 +/- 0.49) x 10(-3). By using the world average value of the branching fraction of D*(0) -> D-0 gamma, the branching fraction of D*(0) -> D(0)e(+)e(-) is determined to be (3.91 +/- 0.27 +/- 0.17 +/- 0.10) x 10(-3), where the first uncertainty is statistical, the second is systematic and the third is from external input of the branching fraction for D*(0) -> D-0 gamma.en_US
dc.description.sponsorshipNational Key Research and Development Program of China [2020YFA0406400, 2020YFA0406300]; National Natural Science Foundation of China (NSFC) [11875115, 11625523, 11635010]; Research Funds for the Central Universities, Sun Yat-sen University; Chinese Academy of Sciences (CAS) Large-Scale Scientific Facility Program; Joint Large-Scale Scientific Facility Funds of the NSFC and CAS [U1732263, U1832207, U2032110]; CAS Key Research Program of Frontier Sciences [QYZDJ-SSW-SLH003, QYZDJ-SSW-SLH040]; 100 Talents Program of CAS; INPAC; Shanghai Key Laboratory for Particle Physics and Cosmology; ERC [758462]; European Union [894790]; German Research Foundation DFG [443159800]; Collaborative Research Center [CRC 1044, FOR 2359, GRK 214]; Istituto Nazionale di Fisica Nucleare, Italy; Ministry of Development of Turkey [DPT2006K-120470]; National Science and Technology fund; Olle Engkvist Foundation [200-0605]; STFC (United Kingdom); The Knut and Alice Wallenberg Foundation (Sweden) [2016.0157]; The Royal Society, UK [DH140054, DH160214]; The Swedish Research Council; U.S. Department of Energy [DE-FG02-05ER41374, DE-SC-001206]en_US
dc.description.sponsorshipWe thank Jia-Jun Wu for useful discussions. The 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. 2020YFA0406400, No. 2020YFA0406300; National Natural Science Foundation of China (NSFC) under Contracts No. 11875115, No. 11625523, No. 11635010, Research Funds for the Central Universities, Sun Yat-sen University; The Chinese Academy of Sciences (CAS) Large-Scale Scientific Facility Program; Joint Large-Scale Scientific Facility Funds of the NSFC and CAS under Contracts No. U1732263, No. U1832207, No. U2032110; CAS Key Research Program of Frontier Sciences under Contracts No. QYZDJ-SSW-SLH003, No. QYZDJ-SSW-SLH040; 100 Talents Program of CAS; INPAC and Shanghai Key Laboratory for Particle Physics and Cosmology; ERC under Contract No. 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 Nos. 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. DPT2006K-120470; 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, No. DH160214; The Swedish Research Council; U.S. Department of Energy under Contracts No. DE-FG02-05ER41374, No. DE-SC-001206.en_US
dc.identifier.doi10.1103/PhysRevD.104.112012
dc.identifier.issn2470-0010
dc.identifier.issn2470-0029
dc.identifier.issue11en_US
dc.identifier.scopus2-s2.0-85122402930en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.urihttps://doi.org/10.1103/PhysRevD.104.112012
dc.identifier.urihttps://hdl.handle.net/11411/7702
dc.identifier.volume104en_US
dc.identifier.wosWOS:000746848700006en_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.subjectPhien_US
dc.titleObservation of the electromagnetic Dalitz decay D*0 ? D0e+e-en_US
dc.typeArticleen_US

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