QCD in hadronic B decays

Abstract

The perturbative QCD approach is based on $k_T$ factorization, including the Sudakov form factors so that to avoid the endpoint singularity. In this approach, we calculate the charmless B decays like $B\to \pi \pi$ decays etc. to produce the right number of branching ratios and also CP asymmetry parameters. For final states with at least one charmed meson, like $B\to D\pi$ decays, our results also agree with the experiments.

Comments: 7 pages, with 1 figure, proceedings of the International Conference On Nonperturbative Quantum Field Theory: Lattice And Beyond, 18-20 Dec 2004, Guangzhou, Canton, China