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Relativistic effect of pseudospin symmetry and tensor coupling on the Mie-type potential via Laplace transformation method

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Published 10 October 2014 2014 Chinese Physical Society and IOP Publishing Ltd
, , Citation Eshghi M. and Ikhdair S. M. 2014 Chinese Phys. B 23 120304 DOI 10.1088/1674-1056/23/12/120304

1674-1056/23/12/120304

Abstract

A relativistic Mie-type potential for spin-1/2 particles is studied. The Dirac Hamiltonian contains a scalar S(r) and a vector V(r) Mie-type potential in the radial coordinates, as well as a tensor potential U(r) in the form of Coulomb potential. In the pseudospin (p-spin) symmetry setting Σ = Cps and Δ = V(r), an analytical solution for exact bound states of the corresponding Dirac equation is found. The eigenenergies and normalized wave functions are presented and particular cases are discussed with any arbitrary spin—orbit coupling number κ. Special attention is devoted to the case Σ = 0 for which p-spin symmetry is exact. The Laplace transform approach (LTA) is used in our calculations. Some numerical results are obtained and compared with those of other methods.

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10.1088/1674-1056/23/12/120304