Abstract.
The structure of the Ωπ state with isospin I = 1 and spin-parity J P = 3/2- is 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 calculated results show that the Ωπ state has an attractive interaction, and in the extended chiral SU(3) quark model such an attraction can make for an Ωπ quasi-bound state with the binding energy of about several MeV.
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References
S.J. Brodsky, I.A. Schmidt, G.F. de Teramond, Phys. Rev. Lett. 64, 1011 (1990).
H. Gao, T.-S.H. Lee, V. Marinov, Phys. Rev. C 63, 022201(R) (2001).
F. Huang, Z.Y. Zhang, Y.W. Yu, Phys. Rev. C 73, 025207 (2006).
Z.Y. Zhang, Y.W. Yu, P.N. Shen, L.R. Dai, A. Faessler, U. Straub, Nucl. Phys. A 625, 59 (1997).
L.Ya. Glozman, D.O. Riska, Phys. Rep. 268, 263 (1996).
L.Ya. Glozman, Nucl. Phys. A 663, 103c (2000).
N. Isgur, Phys. Rev. D 61, 118501 (2000).
N. Isgur, Phys. Rev. D 62, 054026 (2000).
L.R. Dai, Z.Y. Zhang, Y.W. Yu, P. Wang, Nucl. Phys. A 727, 321 (2003).
F. Huang, Z.Y. Zhang, Phys. Rev. C 72, 024003 (2005).
F. Huang, Z.Y. Zhang, Y.W. Yu, Phys. Rev. C 70, 044004 (2004).
F. Huang, Z.Y. Zhang, Phys. Rev. C 70, 064004 (2004).
F. Huang, D. Zhang, Z.Y. Zhang, Y.W. Yu, Phys. Rev. C 71, 064001 (2005).
F. Huang, Z.Y. Zhang, Phys. Rev. C 72, 068201 (2005).
F. Huang, Z.Y. Zhang, Y.W. Yu, Commun. Theor. Phys. 44, 665 (2005).
K. Wildermuth, Y.C. Tang, A Unified Theory of the Nucleus (Vieweg, Braunschweig, 1977).
M. Kamimura, Suppl. Prog. Theor. Phys. 62, 236 (1977).
M. Oka, K. Yazaki, Prog. Theor. Phys. 66, 556 (1981).
F. Huang, Z.Y. Zhang, Y.W. Yu, B.S. Zou, Phys. Lett. B 586, 69 (2004).
D. Zhang, F. Huang, Z.Y. Zhang, Y.W. Yu, Nucl. Phys. A 756, 215 (2005).
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Xiangdong Ji
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Wang, W.L., Huang, F., Zhang, Z.Y. et al. A possible Ωπ molecular state. Eur. Phys. J. A 32, 293–297 (2007). https://doi.org/10.1140/epja/i2007-10376-7
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DOI: https://doi.org/10.1140/epja/i2007-10376-7