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Title
Abstract
Introduction
Channels Related to the Known Dibaryon Resonances
Conclusion
References
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Physics
Particle Physics

Dibaryon resonances and short-range NN interaction*

Profile image of Maria PlatonovaMaria Platonova

Chinese Physics C

https://doi.org/10.1088/1674-1137/AC82E3
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Abstract

The dibaryon concept for nuclear force is presented, assuming that the attraction between nucleons at medium distances is mainly due to the s-channel exchange of an intermediate six-quark (dibaryon) state. To construct the respective NN interaction model, a microscopic six-quark description of the NN system is used, in which symmetry aspects play a special role. It is shown that the NN interaction in all important partial waves can be described by the superposition of long-range t-channel one-pion exchange and s-channel exchange by an intermediate dibaryon. The model developed in this study provides a good description of both elastic phase shifts and inelasticities of NN scattering in all S, P, D, and F partial waves at energies from zero to 600–800 MeV and even higher. The parameters of the intermediate six-quark states, corresponding to the best fit of NN scattering data, are found to be consistent with the parameters of the known dibaryon resonances in those NN partial configurat...

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