${{\mathit D}_{{{s}}}^{+}}$ Semileptonic Form Factors and Decay Constants

${{\mathit f}_{{{+}}}}$(0) $\vert {{\mathit V}_{{{cs}}}}\vert $ in ${{\mathit D}_{{{s}}}^{+}}$ $\rightarrow$ ${{\mathit f}_{{{0}}}{(980)}}{{\mathit e}^{+}}{{\mathit \nu}_{{{e}}}}$

INSPIRE   JSON  (beta) PDGID:
S034A50
VALUE EVTS DOCUMENT ID TECN  COMMENT
$0.504$ $\pm0.017$ $\pm0.035$ 0.4k 1
ABLIKIM
2024AT
 BES3 ${{\mathit e}^{+}}{{\mathit e}^{-}}$ at $4128 - 4226$ MeV
1  From an analysis of ${{\mathit D}_{{{s}}}^{+}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit e}^{+}}{{\mathit \mu}_{{{e}}}}$ decays. ABLIKIM 2024AT uses a simple pole parametrization of the hadronic form factor and the Flatte' formula for describing the ${{\mathit f}_{{{0}}}{(980)}}$ decay.
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