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Doubly excited /sup 1/S/sup e/ resonance states of helium atoms below the N hydrogenic thresholds with Nless than or equal to6

Journal Article · · Phys. Rev. A; (United States)

New results for doubly excited /sup 1/S/sup e/ autoionizing states of helium atoms converging on the N = 2 to N = 6 He/sup +/ thresholds are calculated by use of a method of complex-coordinate rotation. Resonance parameters (both energy and width) obtained by using Hylleraas-type wave functions with 308 terms are compared with the recent close-coupling and hyperspherical-coordinate calculations.

Research Organization:
Department of Physics and Astronomy, Louisiana State University, Baton Rouge, Louisiana 70803-4001
OSTI ID:
5111092
Journal Information:
Phys. Rev. A; (United States), Journal Name: Phys. Rev. A; (United States) Vol. 34:5; ISSN PLRAA
Country of Publication:
United States
Language:
English