Autodetachment of negative ions

Summary, in English

The autodetachment of 1s2s2p 4p0 in He- and nsnp 2 4P(e) in Be- (n = 2), Mg- (n = 3), and Ca- (n = 4) is calculated using an extension to continum processes of the multiconfiguration Hartree-Fock method. The main interest is to investigate the processes giving rise to long-lived, metastable states in negative ions. In He- and Be- our results agree with earlier experimental and theoretical ones, and do predict a long-lived component. In Mg- and Ca-, however, we do not find any corresponding long-lived state. The processes behind the decay of these states are investigated, and a comparison of the different systems is made.

• Författare: Tomas Brage; CF Fischer
• Publiceringsår: 1991
• Språk: Engelska
• Sidor: 72-79
• Publikation/Tidskrift/Serie: Physical Review A (Atomic, Molecular and Optical Physics)
• Volym: 44
• Issue: 1
• Länkar: http://dx.doi.org/10.1103/PhysRevA.44.72
• Dokumenttyp: Artikel i tidskrift
• Förlag: American Physical Society
• Ämne: Physical Sciences
• Status: Published
• ISBN/ISSN/Övrigt: ISSN: 1050-2947