A DISSOCIATIVE PHOTOIONIZATION STUDY OF THE AUTOIONIZATION LIFETIME OF THE LOWEST (1)SIGMA(U) SUPEREXCITED STATE IN HYDROGEN AND DEUTERIUM

Authors
LATIMER CJ DUNN KF KOUCHI N MCDONALD MA SRIGENGAN V GEDDES J
Citation
Cj. Latimer et al., A DISSOCIATIVE PHOTOIONIZATION STUDY OF THE AUTOIONIZATION LIFETIME OF THE LOWEST (1)SIGMA(U) SUPEREXCITED STATE IN HYDROGEN AND DEUTERIUM, Journal of physics. B, Atomic molecular and optical physics, 26(18), 1993, pp. 595-600
Citations number
19
Categorie Soggetti
Physics, Atomic, Molecular & Chemical",Optics
Journal title
Journal of physics. B, Atomic molecular and optical physics → ACNP
ISSN journal
09534075
Volume
26
Issue
18
Year of publication
1993
Pages
595 - 600
Database
ISI
SICI code
0953-4075(1993)26:18<595:ADPSOT>2.0.ZU;2-3
Abstract
The kinetic energy spectra of the fragment protons and deuterons produ ced in the dissociative photoionization of H-2 and D2 by 30.5 eV photo ns have been measured. It is shown that the ratio of the proton to deu teron spectra can provide an experimental estimate of the autoionizing lifetime of the 1SIGMA(u)(1) superexcited state as a function of inte rnuclear separation. The experimentally determined lifetimes are signi ficantly smaller than theoretical predictions.