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

摘要

The 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 stare 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 Delta 's. The value of the width obtained due to tenser one-gluon exchange is about 5 MeV, comparable in magnitude to earlier results found using pion exchange. (C) 2001 Elsevier Science B.V. All rights reserved. [References: 53]