Isgur-Wise Function on the Lattice

TL;DR

This paper reviews a lattice QCD method for calculating the Isgur-Wise function, discusses systematic errors, and uses experimental data to estimate the CKM matrix element V_cb, contributing to the understanding of heavy quark decays.

Contribution

It introduces a lattice calculation approach for the Isgur-Wise function and provides a new estimate of V_cb based on recent experimental results.

Findings

Calculated Isgur-Wise function on the lattice.

Estimated V_cb value as 0.044 with uncertainties.

Discussed systematic errors in lattice computations.

Abstract

We review our method and numerical results for calculation of the Isgur-Wise function on the lattice. We present a discussion of the systematic errors. Using recent experimental results, we find $V_{cb} = 0.044\pm 0.005\pm .007$. Contribution to Lattice '93 proceedings. Needs espcrc2.sty file (included after \end{document}). Search Figure1.ps for postscript files.