Exploring Single-Flavor Dibaryons: A lattice perspective

TL;DR

This study uses lattice QCD to investigate single-flavor dibaryons with charm and strange quarks, analyzing their energies and interactions across various lattice setups.

Contribution

It provides the first lattice QCD calculations of single-flavor dibaryons with charm and strange quarks, exploring their ground state energies and interactions.

Findings

Ground state energies calculated for charm and strange dibaryons.

Energy differences analyzed to understand interaction strengths.

Results offer insights into dibaryon stability at different quark masses.

Abstract

We present a lattice calculation of dibaryons composed of single-flavor quarks with either charm or strange quark mass. We utilize a set of lattice QCD ensembles with $N_f=2+1+1$ dynamical HISQ fields, two spatial volumes, and four different lattice spacings generated by the MILC collaboration. By using an overlap action for the valence quark propagators, we calculate the ground state energies of dibaryons in $S = 0$ and $S = 2$ spin channels. By analyzing the energy difference of the ground state of the dibaryon with respect to the relevant threshold, we provide insights into the interactions involved in different spin channels at the charm and the strange quark masses.