2018 Impact factor 4.843
Particles and Fields
Eur. Phys. J. C 4, 503-511
DOI 10.1007/s100529800787

## QCD interactions of heavy mesons with pions by light-cone sum rules

P. Colangelo1 - F. De Fazio1,2

1 I.N.F.N., Sezione di Bari, I-70126 Bari, Italy
2 Dipartimento di Fisica, Universitá di Bari, I-70126 Bari, Italy

Received: 30 May 1997 / Revised version: 7 October 1997 / Published online: 23 February 1998

Abstract
Light-cone QCD sum rules are employed to compute the strong coupling constants: , and , where (B,B*) and (B0,B1) are negative and positive parity (0-,1-) and (0+,1+) doublets. The couplings are calculated both for finite values of the heavy quark mass and in the infinite heavy quark mass limit, deriving sum rules for .