Lattice analysis of semi-leptonic form factors

Physics – High Energy Physics – High Energy Physics - Lattice

Scientific paper

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4 pages. Talk presented at Lattice 95. Latex. Modified "axis" source for figures also included

Scientific paper

10.1016/0920-5632(96)00105-3

We present preliminary results from simulations done on 170 $32^3 \times 64$ lattices at $\beta = 6.0$ using quenched Wilson fermions. This talk focuses on the $Q^2$ behavior of the form-factors, extrapolation in quark masses, dependence on renormalization scheme, and comparison with heavy-quark effective theory (HQET). Even though we cannot estimate errors due to quenching and discretization, our results are consistent with experimental results for $D$ decays. We present results for the Isgur-Wise function and estimate $\xi'(w=1) = 0.97(6)$.

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