Measurements of the absolute branching fractions for $D_s^{+}\to \eta e^{+}{\nu }_e$ and $D_s^{+}\to {\eta }^{\prime }{e}^{+}{\nu }_e$

M. Ablikim, M. N. Achasov, X. C. Ai +412

By analyzing 482 pb${}^{-1}$ of $e^{+}{e}^{-}$ collision data collected at $\sqrt{s}=4.009$ GeV with the BESIII detector at the BEPCII collider, we measure the absolute branching fractions…