Pseudospin and spin symmetry in Dirac-Morse problem with a tensor potential

AYDOĞDU O., Sever R.

PHYSICS LETTERS B, vol.703, no.3, pp.379-385, 2011 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 703 Issue: 3
  • Publication Date: 2011
  • Doi Number: 10.1016/j.physletb.2011.08.010
  • Journal Name: PHYSICS LETTERS B
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.379-385
  • Keywords: Dirac equation, Morse potential, Tensor potential, Pseudospin symmetry, Spin symmetry, STATES
  • Middle East Technical University Affiliated: Yes

Abstract

Under the conditions of the pseudospin and spin symmetry, approximate analytical solutions of the Dirac-Morse problem with Coulomb-like tensor potential are presented. The energy eigenvalue equations are found and corresponding radial wave functions are obtained in terms of confluent hypergeometric functions. The energy eigenvalues are calculated numerically in the absence and presence of the tensor potential. We also investigate the contribution of the potential parameters to the energy splitting of the pseudospin and spin doublets. (C) 2011 Elsevier B.V. All rights reserved.