QCD Interactions of Heavy Mesons with Pions by Light-Cone Sum Rules

Details QCD Interactions of Heavy Mesons with Pions by Light-Cone Sum Rules QCD Interactions of Heavy Mesons with Pions by Light-Cone Sum Rules

1997-06-06

arxiv.org/abs/hep-ph/9706271v2

Eur.Phys.J.C4:503-511,1998

Physics

High Energy Physics

High Energy Physics - Phenomenology

Latex, 23 pages, 6 figures. Revised version to appear in Z. Phys. C

Scientific paper

10.1007/s100520050222

Light-cone QCD sum rules are employed to compute the strong coupling constants: g_{B^* B^* pi}, g_{B_1 B_0 pi} and g_{B_1 B^* pi}, where (B,B^*) and (B_0,B_1) are negative and positive parity (0^-,1^-) and (0^+,1^+) \bar qQ 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 m_Q \to \infty.

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