A quark-meson coupling model based on SU(3) L ร SU(3) R symmetry and scale invariance is proposed. We apply this chiral SU(3) quark mean-field model to investigate strange hadronic matter including ฮ, ฮฃ and ฮ hyperons. With the symmetry-breaking term, all the hyperon potentials are reasonable. The e
Multi-strange hadronic systems in a chiral SU(3) quark mean field model
โ Scribed by P. Wang; H. Guo; Z.Y. Zhang; Y.W. Yu; R.K. Su; H.Q. Song
- Publisher
- Elsevier Science
- Year
- 2002
- Tongue
- English
- Weight
- 230 KB
- Volume
- 705
- Category
- Article
- ISSN
- 0375-9474
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โฆ Synopsis
We apply the chiral SU(3) quark mean field model to investigate the finite nuclei. We find that the combined confining potential ฯ C c is more proper to describe finite nuclei compared with the scalar and scalar-vector potentials. The hypernuclei and multi-strange objects which include and are discussed in this model. The maximum binding energy for such kind of multi-strange objects is about 16-17 MeV and the corresponding strangeness fraction f s is around 1.2-1.3.
๐ SIMILAR VOLUMES
The possible candidates of S-wave dibaryons with various strange numbers are studied under the chiral SU(3) quark model. It is shown that there are three types of baryon-baryon bound states. The states of the first type are called deuteron-like states. If chiral fields can provide enough attraction
Quark-chiral field interaction is studied in terms of the linear realization of the Lagrangian which is invariant under the SU(3)L ร SU(3)R infinitesimal transformation and then is applied to the hyperon-nucleon scattering calculation in the framework of RGM. It is shown that the SU(3) chiral scalar
The energies of the (0S) 6 six quark cluster states are calculated in the chiral SU(3) quark model. The results show that some states with high strangeness have more attraction from the chiral SU(3) coupling, and this feature is interesting in discussing if there exists some new narrow width six qua