A Lattice Calculation of the Heavy Quark Universal Form Factor

TL;DR

This paper presents a preliminary lattice calculation of the Isgur-Wise universal form factor within HQET, comparing results with experimental data from ARGUS and CLEO on B to D* l nu decay.

Contribution

It introduces a lattice-based approach to compute the Isgur-Wise form factor and compares it with recent experimental measurements.

Findings

Preliminary lattice results align with experimental data.

Demonstrates feasibility of lattice HQET for form factor calculations.

Provides a basis for more precise future computations.

Abstract

A preliminary computation of the Isgur-Wise universal form factor using a lattice formulation of the Heavy Quark Effective Theory (HQET) is described and compared with the recent data from ARGUS and CLEO on B -> D*lv decay.