Spectroscopy of Charmed and Bottom Hadrons using Lattice QCD

TL;DR

This study uses lattice QCD with overlap valence quarks on HISQ gauge configurations to compute and predict the spectra of light, charmed, and bottom baryons, providing results consistent with known data and new predictions.

Contribution

It introduces a comprehensive lattice QCD approach to calculate baryon spectra across multiple quark flavors and predicts masses of yet undiscovered states.

Findings

Results agree with known charmed baryon measurements.

Predicted masses for several unobserved baryon states.

Performed continuum and chiral extrapolations for accurate results.

Abstract

We present preliminary results on the light, charmed and bottom baryon spectra using overlap valence quarks on the background of 2+1+1 flavours HISQ gauge configurations of the MILC collaboration. These calculations are performed on three different gauge ensembles at three lattice spacings (a ~ 0.12 fm, 0.09 fm and 0.06 fm) and for physical strange, charm and bottom quark masses. The SU(2) heavy baryon chiral perturbation theory is used to extrapolate baryon masses to the physical pion mass and the continuum limit extrapolations are also performed. Our results are consistent with the well measured charmed baryons. We predict the masses of many other states which are yet to be discovered.