Observation of B -> K-S(0)pi(+)pi(-) and evidence for B -> K-*+/-pi(-/+)

Abstract

We report on a search for charmless hadronic B decays to the three-body final states K(S)(0)h(+)pi(-), K(+)h(-)pi(0), K(S)(0)h(+)pi(0) (h(+/-) denotes a charged pion or kaon), and their charge conjugates, using 13.5 fb(-1) of integrated luminosity produced near roots=10.6 GeV, and collected with the CLEO detector. We observe the decay B-->K(0)pi(+)pi(-) with a branching fraction (50(-9)(+10)(stat.)+/-7(syst.))x10(-6) and the decay B-->K*+(892)pi(-) with a branching fraction (16(-5)(+6)(stat.)+/-2(syst.))x10(-6).