Ablikim, M.Achasov, M. N.Ahmed, S.Albrecht, M.Amoroso, A.An, F. F.An, Q.Lou, XinchouBESIII Collaboration2018-10-012018-10-012018-01-292018-10-012470-0010http://hdl.handle.net/10735.1/6175By analyzing 482 pb⁻¹ of e⁺e⁻ collision data collected at the center-of-mass energy √s = 4.009 GeV with the BESIII detector, we measure the branching fractions for the semi-leptonic decays D(s)⁺ → φe⁺ν(e), φμ⁺ν(μ), ημ⁺ν(μ) and η′μ⁺ν(μ) to be ℬ(D(s)⁺ → φe⁺ν(e)) = (2.26 ± 0.45 ± 0.09)%, ℬ(D(s)⁺ → φμ⁺ν(μ)) = (1.94 ± 0.53 ± 0.09)%, ℬ(D(s)⁺ → ημ⁺ν(μ)) = (2.42 ± 0.46 ± 011)% and ℬ(D(s)⁺ → η′μ⁺ν(μ)) = (1.06 ± 0.54 ± 0.07)%, where the first and second uncertainties are statistical and systematic, respectively. The branching fractions for the three semi-muonic decays D(s)⁺ → φμ⁺ν(μ), ημ⁺ν(μ) and η′μ⁺ν(μ) are determined for the first time and that of D(s)⁺ → φe⁺ν(e) is consistent with the world average value within uncertainties.enCC BY 4.0 (Attribution)©2018 The Authorshttp://creativecommons.org/licenses/by/4.0/Form factor (Nuclear physics)Electron-positron interactionsCollisions (Nuclear physics)Leptons (Nuclear physics)--DecayMuons--DecayBranching fractions (Nuclear physics)articleAblikim, M., M. N. Achasov, S. Ahmed, M. Albrecht, et al. 2018. "Measurements of the branching fractions for the semileptonic decays D(s)⁺ → φe⁺ν(e), φμ⁺ν(μ), ημ⁺ν(μ) and η′μ⁺ν(μ)." Physical Review D 97(1), doi:10.1103/PhysRevD.97.012006971