Studies of Charmless Two-Body, Quasi-Two-Body and Three-Body B Decays

Abstract

Preliminary results are presented on a search for several exclusive charmless hadronic B decays, from data collected by the BABAR detector near the Upsilon(4S) resonance. These include two-body decay modes h^{+/-}h^{-/+} three-body decay modes with final states h^{+/-}h^{-/+}h^{+/-} and h^{+/-}h^{-/+}π^0, and quasi-two-body decay modes with final states X^0 h and X^0 K_s^0, where h = pi or K and X^0 = eta^prime or omega. The measurement of branching fractions for four decay modes, and upper limits for nine modes are presented.