Spin and Pseudospin Symmetries of Dirac Equation and the Yukawa Potential as the Tensor Interaction |
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Authors: | H. Hassanabadi E. Maghsoodi S. Zarrinkamar |
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Affiliation: | 1. Physics Department, Shahrood University of Technology, Shahrood, Iran;2. Department of Basic Sciences, Garmsar Branch, Islamic Azad University, Garmsar, Iran |
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Abstract: | Considering of a tensor interaction in Dirac equation removes the degeneracy in spin and pseudospin doublets and consequently leads to results consistent with the experimental data. Here, instead of the commonly used Coulomb or linear terms, we investigate a tensor interaction of Yukawa form. We obtain arbitrary state solutions of Dirac equation under vector, scalar and tensor Yukawa potentials via a physical approximation and the Nikiforov-Uvarov methodology. The solutions are discussed in detail. |
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Keywords: | Dirac equation spin symmetry pseudospin symmetry tensor interaction Yukawa potential |
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