N phi state in chiral quark model

Abstract

The structures of N phi states with spin-parity J^{p}=3/2^- and J^p=1/2^- are dynamically studied in both the chiral SU(3) quark model and the extended chiral SU(3) quark model by solving a resonating group method (RGM) equation. The model parameters are taken from our previous work, which gave a satisfactory description of the energies of the baryon ground states, the binding energy of the deuteron, the nucleon-nucleon (NN) scattering phase shifts, and the hyperon-nucleon (YN) cross sections. The channel coupling of N phi and Lambda K* is considered, and the effect of the tensor force which results in the mixing of S and D waves is also investigated. The results show that the N phi state has an attractive interaction, and in the extended chiral SU(3) quark model such an attraction plus the channel coupling effect can consequently make for an N phi quasi-bound state with several MeV binding energy.

11 pages, 2 figures

References in corpus (6)

• N-N Interactions in the Extended Chiral SU(3) Quark Model
• Resonating group method study of kaon-nucleon elastic scattering in the chiral SU(3) quark model
• N K and Delta K states in the chiral SU(3) quark model
• Kaon-nucleon interaction in the extended chiral SU(3) quark model
• Coupled-channels study of Lambda K and Sigma K states in the chiral SU(3) quark model
• Delta K, Lambda K, and Sigma K states in the extended chiral SU(3) quark model

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