QCD FACTORIZATION IN HADRONIC B  J/ ( ,K) DECAYS*

Abstract

Using QCD factorization for the hadronic matrix elements, we show that existing data, inparticular the branching ratios BR ( B →J/ψK) and BR ( B →J/ψπ), can be accounted for in this approach.We analyze the decay B J /K( ) within the framework of QCD factorization. The calculation of therelevant hard-scattering kernels for twist-2 and twist-3 is completed. We calculate this decay in a special scale(  mb ) and in two schemes for Wilson coefficients in NLO. We consider three functions for J / . Thetwist-3 contribution involves the logarithmically divergent integral, we consider  H  0 the cancelingdivergent. The obtained results are in agreement with available experimental data.