Abstract
We report a theoretical analysis of the exclusive non-leptonic decays of B
mesons into two light mesons,some of which have been measured recently by the
CLEO collaboration. Our analysis is carried out in the context of an effective
Hamiltonian based on the Standard Model using next-to-leading order
perturbative QCD calculations. Using a factorization ansatz for the hadronic
matrix elements, we show that existing data are accounted for in this approach.
Thus, theoretical scenarios with a substantially enhanced Wilson coefficient of
the chromomagnetic dipole operator (as compared to the SM) and/or those with a
substantial color-singlet \$cc\$ component in the wave function of
\$\eta^\prime\$ are not required by these data. Implications of some of these
measurements for the parameters of the CKM matrix are presented.
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