Pionic couplings (g^ and g~) in the static heavy quark limit

Details Pionic couplings (g^ and g~) in the static heavy quark limit Pionic couplings (g^ and g~) in the static heavy quark limit

2005-10-04

arxiv.org/abs/hep-lat/0510017v1

PoS LAT2005:212,2006

Physics

High Energy Physics

High Energy Physics - Lattice

6 pages proceedings write-up of the talk presented at Lattice 2005

Scientific paper

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.

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