The CP violating asymmetry in B-+/--> M(M)over-bar-pi(+/-) decays

We analyze the asymmetry in the partial widths for the decays B+/---> M (M) over bar pi(+/-) (M = pi(+), K+, pi(o), eta), which results from the inter ference of the nonresonant decay amplitude with the resonant amplitude for B+/- --> chi(c0)pi(+/-) followed by the decay chi(c0)--> M (M) over bar. Th e CP violating phase gamma can be extracted from the measured asymmetry. We find that the partial width asymmetry for B+/- --> pi(+)pi(-)pi(+/-) is ab out 0.33 sin gamma, and about 0.45 sin gamma for B+/- --> K+ K- pi(+/-), wh ile it is somewhat smaller for B+/- --> pi(0)pi(0)pi(+/-) and B+/- --> eta eta pi(+/-). Potential sources of uncertainties in these results, primarily coming from poorly known input parameters, are discussed. (C) 1999 Publish ed by Elsevier Science B.V. All rights reserved.