Analysis of the doubly heavy baryons in the nuclear matter with the QCD sum rules

TL;DR

This paper investigates the properties of doubly heavy baryons within nuclear matter using QCD sum rules, predicting mass shifts that can be tested experimentally.

Contribution

It introduces coupled QCD sum rules for doubly heavy baryons in nuclear matter, providing specific mass-shift predictions.

Findings

Mass shifts for various doubly heavy baryons in nuclear matter.

Predicted mass-shifts can be tested with future experiments.

Abstract

In this article, we study the doubly heavy baryon states $\Xi_{cc}$, $\Omega_{cc}$, $\Xi_{bb}$ and $\Omega_{bb}$ in the nuclear matter using the QCD sum rules, and derive three coupled QCD sum rules for the masses, vector self-energies and pole residues. The predictions for the mass-shifts in the nuclear matter $\Delta M_{\Xi_{cc}}=-1.11\,\rm{GeV}$, $\Delta M_{\Omega_{cc}}=-0.33\,\rm{GeV}$, $\Delta M_{\Xi_{bb}}=-3.37\,\rm{GeV}$ and $\Delta M_{\Omega_{bb}}=-1.05\,\rm{GeV}$ can be confronted with the experimental data in the future.