Direct CP Violation Asymmetries in Exclusive B Decays in a Bethe-Salpeter Approach

Abstract

CP asymmetry in some exclusive decays of charged B meson are calculated in a Bethe-Salpeter approach. Hadronic final state interactions are ignored. Complex decay amplitudes are assumed to arise entirely from perturbative quark-antiquark loops. Calculations are done both with and without the gluon quark-antiquark vacuum polarization loops. The effects of neglecting the imaginary parts arising from the diagonal quark-antiquark loops are also studied.

Comments: 15 pages, Latex, 2 eps-figures. Minor revisions. To be published in Phys.Lett.B