Doubly Strange Dibaryon in the Chiral Model

Abstract

It shown that the chiral model with SU (3) flavor symmetry predicts a dibaryon state of low mass $M\left(M\approx 2.2 \mathrm{GeV}\right)$. It is electrically neutral and is an SU (3) singlet with $J^P=0^{+}$. It corresponds to a six-quark state found in the MIT bag model by Jaffe. It is also shown that there is no stable particlelike state of baryon number 2 which is based on Skyrme's spherically symmetric Ansatz for the chiral field.