Chiral effective Lagrangian for excited heavy-light mesons from QCD

Qing-Sen Chen,Hui-Feng Fu,Yong-Liang Ma,Qing Wang

Table 1. The heavy-light meson masses and the coupling constants calculated from the G-Z Model with Λc = 1.6 GeV. The empirical values are give for comparison.

a0 Σ(0) (GeV) fπ(GeV) $-\langle \bar{\psi }\psi \rangle $ (GeV3) gR gT gTR mR (GeV) mT (GeV) Δm (GeV) 0.50 0.158 0.073 (0.328)3 0.882 −0.479 −0.990 1.365 1.104 0.261 0.51 0.193 0.084 (0.350)3 0.936 −0.442 −0.987 1.411 1.091 0.321 0.52 0.226 0.093 (0.368)3 0.991 −0.409 −0.984 1.459 1.080 0.379 0.53 0.259 0.102 (0.385)3 1.047 −0.377 −0.981 1.510 1.071 0.439 0.54 0.291 0.109 (0.399)3 1.107 −0.347 −0.979 1.564 1.064 0.500 Exp. — 0.093 [34] — — — — 1.433a 1.178 0.255