NONFACTORIZABLE LONG DISTANCE CONTRIBUTIONS IN COLOR SUPPRESSED DECAYS OF B MESONS

Abstract

[Formula: see text], D*π, [Formula: see text] and J/ψπ decays are studied. Their amplitude is given by a sum of factorized and nonfactorizable ones. The latter which is estimated by using a hard pion approximation is rather small in color favored [Formula: see text] and D*π decays but still can efficiently interfere with the main amplitude given by the factorization. In the color suppressed [Formula: see text] and J/ψπ decays, the nonfactorizable contribution is very important. The sum of the factorized and nonfactorizable amplitudes can reproduce well the existing experimental data on the branching ratios for the color favored [Formula: see text] and D*π and the color suppressed [Formula: see text] and J/ψπ decays by taking reasonable values of unknown parameters involved.