The nucleon-nucleon interaction and the role of the [42] orbital six-quark symmetry |
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Authors: | Amand Faessler F. Fernandez G. Lübeck K. Shimizu |
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Affiliation: | Institut für Theoretische Physik, Universität Tübingen, D 7400 Tübingen, W. Germany |
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Abstract: | The short-range part of the nucleon-nucleon interaction is treated in the one-quark and gluon-exchange approximation. The S-wave phase shifts are calculated using the resonating group method. The nucleon-nucleon, ΔΔ and hidden color channels are taken into account. The spatial symmetry [42] is slightly preferred over the fully orbital symmetric state by the larger probability (89%) with which it is contained asymptotically in the nucleon-nucleon channel and by the quark-quark interaction. The orbital [42] symmetry requires a node in the relative S-wave function between the two nucleons. This yields a hard-core phase shift for the singlet and triplet S-waves. |
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