B -> phi K decays in perturbative QCD approach

Abstract

We calculate the branching ratios and CP asymmetries of the $B\to \varphi K$ decays using perturbative QCD approach, which includes $k_T$ and threshold resummations. Our results of branching ratios are consistent with the experimental data and larger than those obtained from the naive factorization assumption and the QCD-improved factorization approach.

15 pages, 5 figures, RevTeX, Minor changes, a reference added