Closed-form perturbative expressions for spin and pseudo-spin energy splittings in relativistic mean-field models are derived, decomposing pseudo-spin breaking into a mass-dependent central-potential part and a nearly constant spin-orbit part.
The origin of this decrease can also be qualitatively explained
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Patterns of spin and pseudo-spin symmetries in nuclear relativistic mean-field approaches
Closed-form perturbative expressions for spin and pseudo-spin energy splittings in relativistic mean-field models are derived, decomposing pseudo-spin breaking into a mass-dependent central-potential part and a nearly constant spin-orbit part.