Branching ratios of $B^{+}\to D^{(\ast )+}{K}^{(\ast )0}$ decays in perturbative QCD approach

Abstract

We study the rare decays $B^{+}\to D^{(\ast )+}{K}^{(\ast )0}$, which can occur only via annihilation type diagrams in the standard model. We calculate all of the four modes, $B\to PP,VP,PV,VV$, in the framework of perturbative QCD approach and give the branching ratios of the order about $10^{-6}$.

Comments: 18 pages, 1 figure, Revtex