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Pseudospin symmetry in single particle resonant states


The pseudospin symmetry is a relativistic dynamical symmetry connected with the small com- ponent of the Dirac spinor. The origin of pseudospin symmetry in single particle bound states in atomic nuclei has been revealed and studied extensively. By examining the zeros of Jost functions corresponding to the small components of Dirac wave functions and phase shifts of continuum states, we show that the pseudospin symmetry in single particle resonant states in nuclei is conserved when the attractive scalar and repulsive vector potentials have the same magnitude but opposite sign. The exact conservation and the breaking of pseudospin symmetry are illustrated for single particle resonances in spherical square-well and Woods-Saxon potentials.
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Recommended references: Bing-Nan Lu,En-Guang Zhao,Shan-Gui Zhou.(2017).Pseudospin symmetry in single particle resonant states.[ChinaXiv:201708.00249] (Click&Copy)
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[V1] 2017-08-22 20:09:50 chinaXiv:201708.00249V1 Download
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