Measurement of the absolute branching fractions for purely leptonic Ds+ decays

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dc.authoridWang, Yunwen/0009-0008-3083-7799|Lavezzi, Lia/0000-0002-4928-8151|Gradl, Wolfgang/0000-0002-9974-8320|Sheng, Jin-Huan/0000-0002-2655-6301|Cetin, Serkant Ali/0000-0001-5050-8441|Messchendorp, Johan/0000-0001-6649-0549|Calligaris, Luigi/0000-0002-9951-9448|Zhemchugov, Alexey/0000-0002-3360-4965|Wu, Yiping/0009-0000-6223-5786|Yuncu, Alperen/0000-0001-9696-9331|Mangoni, Alessio/0000-0002-4786-6632|Wu, Xin/0000-0001-7655-389X|Farineli, Riccardo/0000-0002-7972-9093|Janchiv, Shinebayar/0000-0003-1207-3322|Song, Weimin/0000-0003-1376-2293|Liu, Zhiyu/0000-0001-8351-1268|Zhang, Jiawei/0000-0002-9202-0070|wang, qi/0000-0002-2794-6897|Kolcu, Onur Bugra/0000-0002-9177-1286|Spataro, Stefano/0000-0001-9601-405X|Han, Jian/0000-0002-0647-4050|Wang, Yue/0000-0001-8673-6358|Guo, Ruipeng/0000-0002-7195-7315|Lane, Jake/0000-0002-5816-9488|Adlarson, Patrik/0000-0001-6280-3851|Bortone, Alberto/0000-0003-1577-5004|Schoenning, Karin/0000-0002-3490-9584|Qi, Hongrong/0000-0002-9325-2308|Lange, Jens Soren/0000-0003-0234-0474|Kappert, Rosa/0000-0001-5429-3652|Achasov, Mikhail/0000-0002-9400-8622|Aliberti, Riccardo/0000-0003-3500-4012|Johansson, Tord/0000-0002-6945-716X|Lellmann, Max/0000-0002-2154-9292|Mezzadri, Giulio/0000-0003-0838-9631|Cossio, Fabio/0000-0003-0454-3144|Song, Yunxuan/0000-0003-0256-4320|BALOSSINO, Ilaria/0000-0001-9646-4042|Kliemt, Ralf/0000-0002-6013-3329|Rodin, Viktor/0000-0002-7076-2700|, tong/0000-0001-7696-1252|Kuessner, Meike/0000-0002-0028-0490|Amoroso, Antonio/0000-0002-3095-8610|Albrecht, Malte/0000-0001-6180-4297|Muramatsu, Hajime/0000-0003-0305-4461|Greco, Michela/0000-0002-7299-7829
dc.authorwosidWang, Yunwen/KBR-2884-2024
dc.authorwosidwen, Wen/KBB-1727-2024
dc.authorwosidLavezzi, Lia/AAO-9660-2021
dc.authorwosidMa, Mingyang/JXM-3330-2024
dc.authorwosidyang, yun/IZE-1092-2023
dc.authorwosidKuessner, Marie L./O-8645-2017
dc.authorwosidGuo, Lin/KFS-9366-2024
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.abstractWe report new measurements of the branching fraction B(Dv), where lis either mu or tau (-> pi), based on 6.32 fbof electron-positron annihilation data collected by the BESIII experiment at six center-of-mass energy points between 4.178 and 4.226 GeV. Simultaneously floating the Ds -> mu mu components yields B(D -> tau) = (5.21 +/- 0.25 +/- 0.17) x 102, B(D -> mu mu) (5.35 +/- 0.13 +/- 0.16) x 103, and the ratio of decay widths R = Gamma(D -> tau tau)/Gamma -> mu&m)= 9.73-0.58 +/- 0.36, where the first uncertainties are statistical and the second systematic. No evidence of CP asymmetry is observed in the decay rates Ds +/- -> mu +/- v mu and D +/- -> tau +/-= (+2.9 +/- 4.8 +/- 1.0)%. Constraining our measurement to the Standard Model expectation of lepton universality (R = 9.75), we find the more precise results B(D -> tau = (5.22 +/- 0.10 +/- 0.14) x 10-2and A(+/-) = (-0.1 +/- 1.9 +/- 1.0)%. Combining our results with inputs external to our analysis, we determine the C -> (S) over bar quark mixing matrix element, D+ decay constant, and ratio of the decay constants to be vertical bar V vertical bar = 0.973 +/- 0.009 +/- 0.014, f D+ = 249.9 +/- 2.4 +/- 3.5 MeV, and f D+ / f D = 1.232 +/- 0.035, respectively.en_US
dc.description.sponsorshipNational Key Research and Development Program of China [2020YFA0406400, 2020YFA0406300]; 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; NSFC [U1732263, U1832207]; CAS [U1732263, U1832207]; CAS Key Research Program of Frontier Sciences [QYZDJ-SSW-SLH003, QYZDJ-SSW-SLH040]; 100 Talents Program of CAS; INPAC and 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 [DPT2006K-120470]; 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-FG02-05ER41374, DE-SC-0012069]en_US
dc.description.sponsorshipThe BESIII Collaboration thanks the staff of BEPCII and the computing center for their hard efforts. 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. 11625523, No. 11635010, No. 11735014, No. 11822506, No. 11835012, No. 11935015, No. 11935016, No. 11935018, No. 11961141012; 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; 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 Marie Sklodowska-Curie Grant Agreement No. 894790; German Research Foundation DFG under Contracts No. 443159800, Collaborative Research Center CRC 1044, No. FOR 2359, No. 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-0012069.en_US
dc.identifier.doi10.1103/PhysRevD.104.052009
dc.identifier.issn2470-0010
dc.identifier.issn2470-0029
dc.identifier.issue5en_US
dc.identifier.scopus2-s2.0-85116451311en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.urihttps://doi.org/10.1103/PhysRevD.104.052009
dc.identifier.urihttps://hdl.handle.net/11411/7690
dc.identifier.volume104en_US
dc.identifier.wosWOS:000704619500001en_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.titleMeasurement of the absolute branching fractions for purely leptonic Ds+ decaysen_US
dc.typeArticleen_US

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