Pionic couplings ĝ and g̃ in the static heavy quark limit
نویسنده
چکیده
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 (N f = 2) values of such couplings in the static heavy quark limit: (1) ĝ, coupling to the lowest doublet of heavy-light mesons, and (2) g̃, coupling to the first orbital excitations. A brief description of the calculation together with the short discussion of the results is presented.
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