B, ¡ú K <sup> * </ Sup> <sub> 0 </ Sub> (1430) Of ¦Ð Decay Of The Light Cone Qcd Study

An investigation of exclusive B decays is of important phenomenological interest for us to understand and test the standard model (SM). Whereas nonleptonic two-body B decays to negative-parity mesons have been studied exclusively, a systematic discussion is still absent about those with positive-parity mesons (scalar mesons) involved in decay final states. In this paper, taking Bâ†'K₀^*(1430)Ï€transition as an example,we intend to investigate B decays to a scalar and a pseudo-scalar mesons.To this end, we would like to consider a combining use of the QCD light-cone sum rules (LCSR's) method and QCD factorization (QCDF) approach. In order to calculate the related Bâ†'K₀^*(1430) form factors, we use the LCSR's method where underlying correlation function is chosen to be such that the time-ordered product of proper current is sandwiched between the vacuum and one B meson state. Operator-product-expansion (OPE) of the correlation function is performed near the light cone x²=0.As a result, resultant LCSR's for form factors depend explicitly on the nonperturbative inputs-B meson distribution amplitudes (DA's). With the available DA's models, the numerical results of the sum rules are obtained at q²=0. Then the Bâ†'K₀^*(1430)Ï€transition is discussed in the QCDF framework, with the relevant Wilson coefficient fixed. Finally, the decay amplitude and branching ratio are estimated and a comparison is made with the existing data.