On relativistic shifts of negative-ion resonances

Authors: Thylwe, K.-E.
Document Type: Article
Pubstate: Published
Journal: Eur. Phys. J. D
Volume: 66   7
Year: 2012


Results from a Dirac approach to electron- (neutral) atom resonance calculations are compared with those from nonrelativistic ones. A recently developed amplitude-phase method for the Dirac equations that is valid also in the non-relativistic limit is applied. The main conclusion is that significant energy differences are expected for long-lived resonances.