CP violating phase gamma and the partial widths asymmetry in B-->pi(+)pi K--(-) and B--> K+K-K- decays

摘要

Motivated by recent Belle measurement of the branching ratios B- --> pi(+)pi(-)K(-) and B- --> K+K-K- and B+/- --> chic0K(+/-), we investigate the CP violating asymmetry in the partial widths for the decays B- --> pi(+)pi(-)K(-) and B- --> K+K-K-, which results from the interference of the nonresonant decay amplitude with the resonant amplitude B+/- --> chic0 K+/- --> pi(+)pi(-)K(+/-) and B+/- --> chic0K(+/-) --> K+K-K-. By taking gamma similar or equal to 58degrees we predict that the partial widths asymmetry is reaching 10% for the B- --> pi(+)pi(-)K(-) decay and 16% for the B- --> K+K-K- decay. (C) 2002 Elsevier Science B.V. All rights reserved. [References: 38]