Determining CP violation angle γ with B decays into a scalar/tensor meson

We propose a new way for determining the CP violation angle gamma without any hadronic uncertainty. The suggested method is to use the two triangles formed by the decay amplitudes of B-+/- -> (D-0, (D) over bar (0), (D) over bar (0)(CP))K-0(2)(+/-)*(1430). The advantages are that large CP asymmetries are expected in these processes and only singly Cabibbo-suppressed D decay modes are involved. Measurements of the branching fractions of the neutral B-d decays into DK0(2)* (1430) and the time-dependent CP asymmetries in B-s -> (D-0, (D) over bar (0))M (M = f(0)(980), f(0)(1370), f(2)'(1525), f(1)(1285), f(1)(1420), h(1)(1180)) provide an alternative way to extract the angle gamma, which will increase the statistical significance.