Observation of Ds+ ? ?'?+??, Precision Test of Lepton Flavor Universality with Ds+ ? ?(')l +?l, and First Measurements of Ds+ ? ?(')?+?? Decay Dynamics

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dc.authoridLiu, Liang/0000-0002-6753-925X
dc.authoridLane, Jake/0000-0002-5816-9488
dc.authorwosidLiu, Liang/KIA-7696-2024
dc.contributor.authorAblikim, M.
dc.contributor.authorAchasov, M. N.
dc.contributor.authorAdlarson, P.
dc.contributor.authorAliberti, R.
dc.contributor.authorAmoroso, A.
dc.contributor.authorAn, M. R.
dc.contributor.authorÇetin, Serkant Ali
dc.date.accessioned2024-05-19T14:51:07Z
dc.date.available2024-05-19T14:51:07Z
dc.date.issued2024
dc.departmentİstinye Üniversitesien_US
dc.description.abstractBy analyzing 7.33 fb(-1) of e(+)e(-) annihilation data collected at center-of-mass energies between 4.128 and 4.226 GeV with the BESIII detector, we report the observation of the semileptonic decay D-s(+) -> eta'mu(+) nu(mu), with a statistical significance larger than 10 sigma, and the measurements of the D-s(+) -> eta mu(+) nu(mu) and D-s(+) -> eta mu(+) nu(mu) and D-s(+) -> eta'mu(+) nu(mu) decay dynamics for the first time. The branching fractions of D-s(+) -> eta'mu(+) nu(mu) and D-s(+) -> eta'mu(+) nu(mu) are determined to be (2.235 +/- 0.051(stat) +/- 0.052(syst))% and (0.801 +/- 0.055(stat) +/- 0.028(syst))%, respectively, with precision improved by factors of 6.0 and 6.6 compared to the previous best measurements. Combined with the results for the decays D-s(+) ->eta e(+)nu(e)e and D-s(+) ->eta'e(+)nu(e), the ratios of the decay widths are examined both inclusively and in several l(+) nu(e) four-momentum transfer ranges. No evidence for lepton flavor universality violation is found within the current statistics. The products of the hadronic form factors f(+,0)(eta()'()) (0) c -> s Cabibbo-Kobayashi-Maskawa matrix element |V-cs | are determined. The results based on the two-parameter series expansion are f(+,0)(eta) (0)|V-cs | = 0.452 +/- 0.010(stat) +/- 0.007(syst) and f(+,0)(eta)' (0)|V-cs | = 0.504 +/- 0.037(stat) +/- 0.012(syst), which help to constrain present models on f(+,0)(eta()'()) (0). The forward-backward asymmetries are determined to be < A(FB) (eta)> = -0.059 +/- 0.031(stat) +/- 0.005(syst) and < A(FB) (eta')> = -0.064 +/- 0.079(stat) +/- 0.006(syst) for the first time, which are consistent with the theoretical calculation.en_US
dc.description.sponsorshipResources & Institutional Development, Research and Innovation [B16F640076]; Polish National Science Centre [2019/35/O/ST2/02907]; Suranaree University of Technology (SUT) , Thailand Science Research and Innovation (TSRI); National Science Research and Innovation Fund (NSRF) [160355]; Royal Society, United Kingdom [DH160214]; Swedish Research Council; U.S. Department of Energy [DE-FG02-05ER41374]en_US
dc.description.sponsorshipResources & Institutional Development, Research and Innovation under Contract No. B16F640076; Polish National Science Centre under Contract No. 2019/35/O/ST2/02907; 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 Contract No. DH160214; The Swedish Research Council; and U.S. Department of Energy under Contract No. DE-FG02-05ER41374.en_US
dc.identifier.doi10.1103/PhysRevLett.132.091802
dc.identifier.issn0031-9007
dc.identifier.issn1079-7114
dc.identifier.issue9en_US
dc.identifier.pmid38489649en_US
dc.identifier.scopus2-s2.0-85186268587en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.urihttps://doi.org10.1103/PhysRevLett.132.091802
dc.identifier.urihttps://hdl.handle.net/20.500.12713/5879
dc.identifier.volume132en_US
dc.identifier.wosWOS:001202247600008en_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 Lettersen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.snmz20240519_kaen_US
dc.subjectSemileptonic Decaysen_US
dc.subjectTofen_US
dc.titleObservation of Ds+ ? ?'?+??, Precision Test of Lepton Flavor Universality with Ds+ ? ?(')l +?l, and First Measurements of Ds+ ? ?(')?+?? Decay Dynamicsen_US
dc.typeArticleen_US

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