Spectroscopy of Doubly-Charmed Baryons in Lattice QCD

TL;DR

This paper reports lattice QCD calculations of masses for doubly-charmed baryons, providing insights into their ground states, spin splittings, and comparison with single-charmed baryons, advancing understanding of heavy baryon spectroscopy.

Contribution

First lattice QCD study of doubly-charmed baryon masses using non-perturbative clover action, including spin splittings and comparison with single-charmed baryons.

Findings

Good signal for ground states after projection

Masses of spin-1/2 and spin-3/2 doubly-charmed baryons determined

Spin-splittings for double- and single-charmed states calculated

Abstract

We present results for masses of spin-1/2 and spin-3/2 double-charm baryons in quenched lattice QCD, from an exploratory study using a non-perturbatively improved clover action at beta=6.2. We have studied local operators and we observe, after appropriate projections, a good signal for the ground states. We also present results for single-charmed baryons and spin-splittings for both double- and single-charmed states.