Light Flavor Dependence of the Isgur-Wise Function

Details Light Flavor Dependence of the Isgur-Wise Function Light Flavor Dependence of the Isgur-Wise Function

1994-09-12

arxiv.org/abs/hep-ph/9409277v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

(Invited talk given by T.Huang at ICHEP '94, Glasgow, July 1994.), Latex, 5 pages+2 figures, BIHEP-TH-94-35

Scientific paper

We present an investigation on the ligh flavor dependence of the Isgur-Wise function for $B_a\rightarrow D_a$ and $B_a\rightarrow D^{*}_a$ in the framework of QCD sum rules. It is found that the Isgur-Wise function for $B_s$ decay falls faster than that for $B_{u,d}$ decay , which is just contrary to the recent prediction of the heavy meson chiral perturbation theory. SU(3) symmetry breaking effects in the mass and the decay constant are also estimated.

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