# A first study of the semi-leptonic decay of the $\Lambda_b$ baryon

## TL;DR

This paper reports the first lattice QCD study of the baryonic Isgur-Wise function for the $
$ baryon, analyzing its dependence on quark masses and providing initial results on semi-leptonic decay processes.

## Contribution

It introduces the first lattice calculation of the baryonic Isgur-Wise function and explores its behavior with varying quark masses.

## Key findings

- Initial lattice results for the Isgur-Wise function
- Dependence on heavy and light quark masses analyzed
- Some results on $
_b o
_c + l
u$ decay provided

## Abstract

We present the preliminary results of the first Lattice study of the baryonic Isgur and Wise function obtained from the matrix element of the weak current between $\Lambda$-baryon external states. Its dependence on the heavy and light quark masses is studied. Some result on the semi-leptonic decay $\Lambda_b\to\Lambda_c +l\nu$ are given.