QCD INTERACTIONS OF HEAVY MESONS WITH PIONS BY LIGHT-CONE SUM-RULES

Light-cone QCD sum rules are employed to compute the strong coupling c onstants: g(B)B*pi, g(B1B0 pi) and g(B1B*pi), where (B, B*) and (B-0, B-1) are negative and positive parity (0(-),1(-)) and (0(+), 1(+)) (q ) over bar Q doublets. The couplings are calculated both for finite va lues of the heavy quark mass and in the infinite heavy quark mass limi t, deriving sum rules for m(Q) --> infinity.