Extracting the quark mixing phase γ from B±→K±π+π-, B0→Ksπ+π-, and B0→Ksπ+π-

We discuss some aspects of the search for CP asymmetry in the three body B decays, revealed through the interference among neighbor resonances in the Dalitz plot. We propose a competitive method to extract the CKM γ angle combining Dalitz plot amplitude analysis of B±→K±π+π- and untagged B0, B0→Ksπ+π-. The method also obtains the ratio and phase difference between the tree and penguin contributions from B0 and B0→K*±π± decays and the CP asymmetry between B0 and B0. From Monte Carlo studies of 100 K events for the neutral mesons, we show the possibility of measuring γ