Lu, CD (reprint author), Chinese Acad Sci, Inst High Energy Phys, PO Box 9184, Beijing 100049, Peoples R China.
Article; Proceedings Paper
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 -> 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 -> D pi decays, our results also agree with the experiments.