Pionic couplings (g^ and g~) in the static heavy quark limit
  The couplings between the soft pion and the doublet of heavy-light mesons are basic parameters of the ChPT approach to the heavy-light systems. We compute the unquenched (Nf=2) values of two such couplings in the static heavy quark limit: (1) g^, coupling to the lowest doublet of heavy-light mesons, and (2) g~, coupling to the first orbital excitations. A brief description of the calculation together with a short discussion of the results is presented. 
D.Becirevic, B.Blossier, Ph.Boucaud, J.P.Leroy, A.LeYaouanc and O.Pene