Possible S-wave Dibaryons in SU(3) Chiral Quark Model

Details Possible S-wave Dibaryons in SU(3) Chiral Quark Model Possible S-wave Dibaryons in SU(3) Chiral Quark Model

2000-09-14

arxiv.org/abs/nucl-th/0009039v1

Nucl.Phys. A675 (2000) 234-237

Physics

Nuclear Physics

Nuclear Theory

Latex files, 1 figure

Scientific paper

10.1016/S0375-9474(00)00257-8

In the framework of the SU(3) chiral quark model, the $S-$wave baryon-baryon bound states are investigated. It is found that according to the symmetry character of the system and the contributions from chiral fields, there are three types of bound states. The states of the first type, such as $[\Omega\Omega]_{(0,0)}$ and $[\Xi^{*}\Omega]_{(0,1/2)}$ are deeply bound dibaryon with narrow widths. The second type states, $[\Sigma^{*} \Delta]_{(0,5/2)}$,$[\Sigma^{*} \Delta]_{(3,1/2)}$, $[\Delta\Delta]_{(0,3)}$ and $[\Delta\Delta]_{(3,0)}$ are also bound states, but with broad widths. $[\Xi\Omega - \Xi^{*}\Omega]_{(1,1/2)}$, $[\Xi\Xi]_{(0,1)}$, and $[N \Omega]_{(2,1/2)}$ are third type states. They, like {\em d}, are weakly bound only if the chiral fields can provide attraction between baryons.

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