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Nonfactorizable corrections to<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mrow><mml:mover><mml:mrow><mml:mi>B</mml:mi></mml:mrow><mml:mrow><mml:mo>→</mml:mo></mml:mrow></mml:mover></mml:mrow></mml:mrow><mml:mi>J</mml:mi><mml:mo>/</mml:mo><mml:mi>ψ</mml:mi><mml:mi>K</mml:mi></mml:math>
We apply the method of QCD light-cone sum rules to calculate nonfactorizable contributions to the $\stackrel{\ensuremath{\rightarrow}}{B}J/\ensuremath{\psi}K$ 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 …