Observation of Doubly Excited States in Li{sup {bold {minus}}}

Journal Article · Tue Oct 01 00:00:00 EDT 1996 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.77.3751· OSTI ID:389366

Ljungblad, U; Hanstorp, D; Berzinsh, U ^[1]; Pegg, D J ^[2]

---

1. Department of Physics, Goeteborg University and Chalmers University of Technology, S-412 96 Goeteborg (Sweden)
2. Department of Physics, University of Tennessee, Knoxville, Tennessee (United States)

We have investigated doubly excited states in Li{sup {minus}} by measuring the relative partial cross section for photodetaching the Li{sup {minus}} ion via the Li(3{ital s})+{ital e}{sup {minus}}({var_epsilon}{ital P}) channel. The observed resonances are associated with the autodetaching decay of doubly excited states of {ital P}{sup 0}1 symmetry lying just below the Li(4{ital p}) and Li(5{ital p}) thresholds. Excellent agreement between the measured and recently calculated spectra was found below the Li(4{ital p}) threshold. In the region below the Li(5{ital p}) threshold, however, noticeable differences were observed. {copyright} {ital 1996 The American Physical Society.}

• OSTI ID: 389366
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 18 Vol. 77; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
COULOMB FIELD
CROSS SECTIONS
ELECTRON DETACHMENT
ENERGY SPECTRA
EXCITED STATES
LITHIUM IONS
RESONANCE