Nonfactorizable corrections to $\overrightarrow{B}J/\psi K$

We apply the method of QCD light-cone sum rules to calculate nonfactorizable contributions to the $\overrightarrow{B}J/\psi K$ decay and estimate soft nonfactorizable corrections to the $a_2$ parameter. The corrections appear to be positive, favoring the positive sign of $a_2,$ in agreement with recent theoretical considerations and experimental data. Our result also confirms expectations that in the color-suppressed decay nonfactorizable corrections are sizable.