ISSN:
1434-6052
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract. We calculate the branching ratios and CP-asymmetries for $B^0 \to \pi^+\rho^-, B^0 \to \rho^+\pi^-, B^+ \to \rho^+\pi^0$ , $B^+ \to \pi^+\rho^0, B^0 \to \pi^0\rho^0, B^+ \to \pi^+\omega$ and $B^0 \to \pi^0\omega$ decays, in the perturbative QCD approach. In this approach, we calculate non-factorizable and annihilation type contributions, in addition to the usual factorizable contributions. Our result is in agreement with the branching ratio of $B^0/\bar B^0 \to \pi^\pm\rho^\mp, B^\pm \to \pi^\pm\rho^0$ , $\pi^\pm \omega$ measured by the CLEO and BABAR collaborations. We also predict large CP-asymmetries in these decays. These channels are useful to determine the CKM angle $\phi_2$ .
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/s100520100878
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