Nonleptonic two-body charmless B decays involving a tensor meson in the ISGW2 model

Nonleptonic charmless B decays into a pseudoscalar (P) or a vector (V) meson accompanying a tensor (T) meson are reanalyzed. We scrutinize the hadronic uncertainties and ambiguities of the form factors which appear in the literature. The Isgur-Scora-Grinstein-Wise updated model (ISGW2) is adopted to evaluate the relevant hadronic matrix elements. We calculate the branching ratios and CP asymmetries for various B → P (V)T decay processes. With the ISGW2 model, the branching ratios are enhanced by about an order of magnitude compared to the previous estimates.