3 papers
physics.atom-ph1998
Photodetachment study of He^- quartet resonances below the He(n=3) thresholds
Andreas E. Klinkmueller, G. Haeffler, D. Hanstorp +3
The photodetachment cross section of He^- has been measured in the photon energy range 2.9 eV to 3.3 eV in order to investigate doubly excited states. Measurements were made channe…
physics.atom-ph1997
On doubly excited states in negative ions
Andreas E. Klinkmueller
Atomic negative ions are fragile quantum systems in which correlation among the valence electrons plays a very important role. For doubly excited states correlation becomes dominan…
physics.atom-ph1997
Photodetachment study of the 1s3s4s ^4S resonance in He^-
Andreas E. Klinkmueller, Gunnar Haeffler, Dag Hanstorp +5
A Feshbach resonance associated with the 1s3s4s ^{4}S state of He^{-} has been observed in the He(1s2s ^{3}S) + e^- (εs) partial photodetachment cross section. The residual He(1s2s…