ON THE D-ASTERISK-D-PI AND (B)OVER-BAR-ASTERISK(B)OVER-BAR-PI COUPLING-CONSTANTS IN THE EFFECTIVE QUARK-MODEL WITH CHIRAL-SYMMETRY

The coupling constants g(DD pi) and g((B) over bar*(B) over bar pi) O f the DD pi and B*B pi strong interactions are computed in the effect ive quark model with chiral symmetry incorporating heavy quark effecti ve theory (HQET) and chiral perturbation theory at the quark level (CH PT)(q) with linear realization of chiral U(3) x U(3) symmetry. We pred ict g(DD pi) = 5.2 and g((B) over bar*(B) over bar pi) = 14.3. The 1/ M-c corrections to the constant g(DD pi) are calculated and make up l ess than 1%. The contribution of 1/M-b corrections to the constant g(( B) over bar(B) over bar pi) is much less.