Heavy-light baryonic mass splittings from the lattice

TL;DR

This paper reports lattice QCD calculations of the masses of heavy-light baryons $\\Lambda_b$ and $\\Xi_b$, providing estimates that help understand their properties within quantum chromodynamics.

Contribution

The study introduces lattice QCD estimates of heavy-light baryon masses using propagating heavy quarks, including continuum extrapolation and quenched approximation.

Findings

$M_{\Lambda_b} = 5.728 \pm 0.144 \pm 0.018$ GeV

Results are obtained after continuum limit extrapolation

Provides lattice estimates consistent with experimental data

Abstract

We present lattice estimates of the mass of the heavy-light baryons $\Lambda_b$ and $\Xi_b$ obtained using propagating heavy quarks. For $\Lambda_b$ our result is $M_{\Lambda_b}=5.728 \pm 0.144 \pm 0.018$ GeV, after extrapolation to the continuum limit and in the quenched approximation.