Calculating the Isgur-Wise Function on the Lattice

TL;DR

This paper presents a lattice QCD calculation of the Isgur-Wise function by measuring heavy-heavy meson transition matrix elements using Wilson action, providing initial numerical results.

Contribution

First lattice QCD calculation of the Isgur-Wise function using Wilson action for heavy and light quarks, with initial numerical results.

Findings

Initial numerical results for the Isgur-Wise function.

Validation of lattice QCD approach for heavy meson transitions.

Demonstration of feasibility for future detailed studies.

Abstract

We calculate the Isgur-Wise function by measuring the heavy-heavy meson transition matrix element on the lattice. The standard Wilson action is used for both the heavy and light quarks. Our first numerical results are presented.