Lattice analysis of semi-leptonic form factors

Abstract

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 ${\xi }^{\prime }(w=1)=0.97(6)$.

arXiv comment4 pages. Talk presented at Lattice 95. Latex. Modified "axis" source for figures also included

References in corpus (2)

• Heavy Quark Symmetry
• Phenomenology from 100 large lattices

Cited by in corpus (8)

• Lattice QCD calculation of $\bar{B}\to Dl\bar{\nu }$ decay form factors at zero recoil
• Heavy --> Light semileptonic decays of pseudoscalar mesons from lattice QCD
• Study of $D^{+}\to K^{-}{\pi }^{+}{e}^{+}{\nu }_e$
• Analysis of D+ to K- pi+ e+ nu_e and D+ to K- pi+ mu+ nu_mu Semileptonic Decays
• Status of Heavy Quark Physics on the Lattice
• Model Independent Measurement of Form Factors in the Decay D^+ --> K^- pi^+ e^+ nu_e
• Measurement of the form-factor ratios for D+ --> K* l nu
• Angular distribution as an effective probe of new physics in semi-hadronic three-body meson decays