Bes Collaborations

Measurements of the inclusive Branching fractions of the $D_s^+ \to \eta (\eta^\prime) X$ decays

Using $e^+ e^-$ collision data collected with the BESIII detector at center-of-mass energies between $4.128$ and $4.226$ GeV, corresponding to an integrated luminosity of $7.33~{\rm fb}^{-1}$, the inclusive branching fractions of the decays $D_s^+ \to \eta X$ and $D_s^+ \to \eta^\prime X$ ($X$ denotes any possible part...