Measurement of the Branching Ratios for the Decays of $D_s^{+}\to \eta {\pi }^{+},{\eta }^{{}^{\prime }}{\pi }^{+},\eta {\rho }^{+}$, and $et{a}^{{}^{\prime }}{\rho }^{+}$

Abstract

Using a data sample with integrated luminosity of about 3.9 fb^{-1} collected in e+ e- annihilation with the CLEO-II detector at the Cornell Electron Storage Ring, we have measured the branching ratios for the decay modes Ds -> (eta, eta') pi and Ds -> (eta, eta') rho relative to Ds -> phi pi. These decay modes are among the most common hadronic decays of the Ds's and can be related by factorization to the semileptonic decays Ds -> (eta,eta') l nu. The results obtained are compared with previous CLEO results and with the branching ratios measured for the related semileptonic decays. We also report results on the Cabibbo-suppressed decays of the D+ to the same final states.

18 page postscript file, postscript file also available through http://w4.lns.cornell.edu/public/CLNS

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• Measurement of the invariant mass distributions for the pp -> ppeta' reaction at excess energy of Q = 16.4 MeV
• $D_s$ Inclusive Decays
• Measurement of the branching fractions of $D_s^{+}\to {\eta }^{\prime }X$ and $D_s^{+}\to {\eta }^{\prime }{\rho }^{+}$ in $e^{+}{e}^{-}\to D_s^{+}{D}_s^{-}$
• Exclusive Hadronic D Decays to eta' and eta