Electronic Resource
Springer
The European physical journal
10 (2000), S. 327-340
ISSN:
1434-6079
Keywords:
PACS. 31.15.Ar Ab initio calculations - 31.50.+w Excited states - 32.80.Dz Autoionization
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract: We present a detailed analysis of doubly excited resonances in H- of both and symmetry. Both resonance positions and total widths for auto-detachment are calculated using complex coordinate scaling in a Sturmian-type basis in perimetric coordinates. The resonances are classified by approximate quantum numbers with help of their Lewis structures. For the first time, a new class of shape resonances is reported which can be understood as resulting from couplings between different adiabatic potentials with both binding and repulsive character. In addition, we present an analysis of the so called mass polarisation term which gives rise to specific isotope shifts.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/s100530050556
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