We present a measurement of the absolute branching fractions?(D{sub s}− →?−{bar {nu}}{sub {mu}}) and?(D{sub s}− →?−{bar {nu}}{sub {tau}}) and of the D{sub s} decay constant, f{sub D{sub s}}. They also obtain an upper limit on?(D{sub s}− → e{bar {nu}}{sub e}). Then they present results on Dalitz plot analysis of D{sub s} decays to K+K−?+ and?+?−?+. The?+?− and K+K− S-waves are extracted by a model-independent partial wave analysis. Finally they measure relative branching fractions of D{sub s}+ →?+?−?+, D{sub s}+ → K+K−K+, and D{sub s}+ → K+K+?− relative to D{sub s}+ → K+K−?+. All the results make use of data collected by the BABAR detector at the PEP-II storage rings at SLAC.

Results are presented on the study of three body decays of D° 2!K{sub S}°hh−, where h = [pi]/K and D{sub S}{sup {+-}} 2!K{sub S}°K{sub S}°[pi]{sup {+-}}. The data have been collected by the BaBar experiment at SLAC and are extracted from continuum ee− annihilations at the [Upsilon](4S) energy.