Measurement of Absolute Hadronic Branching Fractions of D_s Mesons
Abstract
Description
We report preliminary measurements of absolute hadronic branching fractions of Ds mesons determined using a double tag technique. These measurements are from 195 pb^{-1} of e+e- collisions recorded at center of mass energies near 4.17 GeV with the CLEO-c detector at CESR. We obtain absolute branching fractions for Ds+ decays to KS0 K+, K- K+ pi+, K- K+ pi+ pi-, pi+ pi+ pi-, pi+ eta, and pi+ etaprime. We discuss the problems inherent in measuring accurately the branching fraction for Ds+ to phi pi+, which is often used as a reference mode for measurement of other Ds+ branching fractions, and provide a measurement of a branching fraction that may be useful for this purpose.
20 pages postscript,also available through http://www.lns.cornell.edu/public/CONF/2006/, Contributed to ICHEP06
20 pages postscript,also available through http://www.lns.cornell.edu/public/CONF/2006/, Contributed to ICHEP06