Published November 16, 1987
| Version v1
Journal article
New oscillatory structure in electron energy spectra from autoionizing quasi-molecules: Subthermal collisions of He(23S) atoms with He(21S,23S) atoms
- 1. Fachbereich Physik der Universitaet Kaiserslautern, D-6750 Kaiserslautern, Federal Republic of Germany
Description
We report the first study of the energy spectra of electrons from autoionizing quasimolecules formed at very low collision energies (E-bar/sub rel/ = 1.6 meV). The electron spectra due to ionizing He(23S)-He(23S) and He(21S)-He(23S) collisions in a single atomic beam show significant structure, which is explained on the basis of accurate new ab initio potentials for the relevant excited states. Fast oscillations due to the interference of incoming and outgoing waves of the heavy-particle motion are observed in both the experimental He(23S)-He(23S) spectrum and the corresponding quantum mechanical calculations
Additional details
Publishing Information
- Journal Title
- Phys. Rev. Lett.
- Journal Volume
- 59
- Journal Issue
- 20
- Series
- Phys. Rev. Lett.
- Journal Page Range
- 2279-2282
- ISSN
- 0031-9007
- CODEN
- PRLTA
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 19037863
- Subject category
- S74: ATOMIC AND MOLECULAR PHYSICS;
- Descriptors DEI
- ATOM-ATOM COLLISIONS; ATOMIC BEAMS; AUTOIONIZATION; ELECTRON SPECTRA; EXCITED STATES; HELIUM; MEV RANGE 01-10; MOLECULES
- Descriptors DEC
- ATOM COLLISIONS; BEAMS; COLLISIONS; ELEMENTS; ENERGY LEVELS; ENERGY RANGE; IONIZATION; MEV RANGE; NONMETALS; RARE GASES; SPECTRA