The d*(2380) and its family of pion assisted dibaryons

Abstract

The status of $N\Delta$ and $\Delta\Delta$ dibaryons introduced by Dyson and Xuong in 1964 is briefly reviewed with focus on the d*(2380), tentatively assigned as a $\Delta\Delta$ dibaryon resonance. It is argued that the apparently small value of width, $\Gamma_{d^\ast}$$\approx$70 MeV, favors hadronic structure for the d*(2380) dibaryon rather than a six-quark structure.