Dynamical calculation of $d^*$ mass and NN decay width in the quark delocalization, color screening model

2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/179512The mass estimate of the $d^* (IJ^P=03^+)$ dibaryon is improved by a dynamical calculation in the quark delocalization, color screening model. The partial decay width of $d^*$ into an $NN$ D-wave state is also obtained. The mass obtained is slightly larger than that obtained in adiabatic calculations, due to the anharmonicity of the effective potential between two $Δ$'s. The value of the width obtained due to tensor one-gluon-exchange is about 5 MeV, comparable in magnitude to earlier results found using pion exchange.11 pages, no figures, additional referencesNuclear TheoryDynamical calculation of $d^*$ mass and NN decay width in the quark delocalization, color screening modeltext