TL;DR
This paper uses lattice QCD to calculate the masses of ground and excited states of strange bottom baryons Omega(b) and Omega(bb), confirming results with multiple analysis methods and comparing with quark model predictions.
Contribution
It provides new lattice QCD calculations of excited state masses of strange bottom baryons using a variational method and multiexponential fitting, enhancing understanding of their spectrum.
Findings
Calculated ground and excited state masses of Omega(b) and Omega(bb)
Confirmed radial excitation energies with multiexponential fits
Compared results with quark model predictions
Abstract
The ground state and first excited state masses of Omega(b) and Omega(bb) baryons are calculated in lattice QCD using dynamical 2+1 flavour gauge fields. A set of baryon operators employing different combinations of smeared quark fields was used in the framework of the variational method. Results for radial excitation energies were confirmed by carrying out a supplementary multiexponential fitting analysis. Comparison is made with quark model calculations.
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