Series of Doubly Excited Quartet States of He{sup {minus}}
- Department of Physics, Chalmers University of Technology and Goeteborg University, SE-412 96 Goeteborg (Sweden)
- Department of Physics, University of Tennessee, Knoxville, Tennessee 37996 (United States)
Twelve previously unobserved Feshbach resonances associated with the autodetaching decay of doubly excited states of He{sup {minus}} have been observed in the process of photodetachment. Seven resonant states of {sup 4}P symmetry and one of {sup 4}S symmetry have been identified in the energy range which encompasses the He(n=4,thinsp5) thresholds. Their measured energies and widths agree with recent calculations. A functional form representing the energies of members of the {sup 4}P series has been derived. This form is fundamentally different from the Rydberg-dipole formula that describes doubly excited states of H{sup {minus}} . {copyright} {ital 1998} {ital The American Physical Society }
- OSTI ID:
- 662274
- Journal Information:
- Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 14 Vol. 81; ISSN 0031-9007; ISSN PRLTAO
- Country of Publication:
- United States
- Language:
- English
Similar Records
Photodetachment of H{sup {minus}} and Li{sup {minus}}
Resonance structure in the Li{sup {minus}} photodetachment cross section