Absolute branching fraction measurements for exclusive Ds semileptonic decays

We measure the absolute branching fractions of D-s semileptonic decays where the hadron in the final state is one of phi, eta, eta', K-S(0), K*(0), and f(0), using 2.8 x 10(5) e(+)e(-) -> DsDs* decays collected in the CLEO-c detector at a center-of-mass energy close to 4170 MeV. We obtain B(D-s(+) -> phi e(+)nu(e)) = (2.29 +/- 0.37 +/- 0.11)%, B(D-s(+) -> eta e(+)nu(e)) = (2.48 +/- 0.29 +/- 0.13)%, B(D-s(+) -> eta'e(+)nu(e)) = (0.91 +/- 0.33 +/- 0.05)%, where the first uncertainties are statistical and the second are systematic. We also obtain B(D-s(+) -> K(0)e(+)nu(e)) = (0.37 +/- 0.10 +/- 0.02)%, and B(D-s(+) -> K*(0)e(+)nu(e)) = (0.18 +/- 0.07 +/- 0.01)%, which are the first measurements of Cabibbo suppressed exclusive D-s semileptonic decays, and, B(D-s(+) -> f(0)e(+)nu(e)) x B(f(0) -> pi(+)pi(-)) = (0.13 +/- 0.04 +/- 0.01)%. This is the first absolute product branching fraction determination for a semileptonic decay including a scalar meson in the final state.