Heavy baryon spectroscopy in QCD

TL;DR

This paper uses QCD sum rules to systematically calculate the masses of charmed and bottom baryons, achieving consistency with experimental data and predicting properties of unobserved bottom baryons.

Contribution

It provides a comprehensive QCD sum rule analysis including operators up to dimension six for heavy baryon mass predictions.

Findings

Calculated baryon masses align with experimental data

Predicted masses for unobserved bottom baryons

Validated the effectiveness of the operator product expansion up to dimension six

Abstract

We perform a systematic study of the masses of charmed and bottom baryons in the framework of the QCD sum rule approach. Contributions of the operators up to dimension six are included in operator product expansion. The resulting heavy baryon masses from the calculations are well consistent with the experimental values, and predictions to the spectroscopy of the unobserved bottom baryons are also presented.