Dibaryons with two strange quarks and one heavy flavor in a constituent quark model

TL;DR

This study examines the symmetry and stability of dibaryons with two strange quarks and a heavy flavor using a constituent quark model, finding no evidence of stable compact bound states against strong decay.

Contribution

It introduces two methods for constructing dibaryon wave functions and analyzes their stability, providing new insights into their possible bound states within a constituent quark framework.

Findings

All configurations with S=0,1,2 are unstable against strong decay.

No stable compact dibaryon states are found.

Dibaryons tend to decay into two separate baryons.

Abstract

We investigate the symmetry property and the stability of dibaryons containing two strange quarks and one heavy flavor with $I=\frac{1}{2}$. We construct the wave function of the dibaryon in two ways. First, we directly construct the color and spin state of the dibaryon starting from the four possible SU(3) flavor state. Second, we consider the states composed of five light quarks, and then construct the wave function of the dibaryon by adding one heavy quark. The stability of the dibaryon against the strong decay into two baryons is discussed by using variational method in a constituent quark model with confining and hyperfine potential. We find that for all configurations with S=0,1,2, the ground states of the dibaryons are the sum of two baryons, and there are no compact bound state that is stable against the strong decay.