Publications
Metastable states of diatomic hydrogen anions
- Author(s)
- Holger Kreckel, Philipp Herwig, Dirk Schwalm, M. Cizek, Robin Golser, Oded Heber, Brandon Jordon-Thaden, Andreas Wolf
- Abstract
Transient states of the negative hydrogen molecule H−2 have drawn attention as intermediate reaction complexes in important molecular reactions like associative detachment (AD: H− + H → H−2→ H−2 + e−) and dissociative attachment (DA: e− + H2 → H−2 → H + H−).
Recently it has been shown that metastable states of hydrogen molecular
anions exist that defy both auto detachment and spontaneous
dissociation for several microseconds (in the case of H−2) and even milliseconds (in the case of D−2). Here we present Coulomb explosion measurements for H−2 and D−2
that provide detailed information on the shape of the molecular wave
function. We compare these experimental results with calculated wave
functions obtained using a nonlocal resonance model. Our measurements
confirm the predicted stabilization of H−2 and D−2 in states of high angular momentum.
- Organisation(s)
- Isotope Physics
- External organisation(s)
- Max-Planck-Institut für Kernphysik, Charles University Prague, Weizmann Institute of Science
- No. of pages
- 7
- DOI
- https://doi.org/10.1088/1742-6596/488/1/012034
- Publication date
- 2014
- Austrian Fields of Science 2012
- 103014 Nuclear physics
- Keywords
- ASJC Scopus subject areas
- Physics and Astronomy(all)
- Portal url
- https://ucris.univie.ac.at/portal/en/publications/metastable-states-of-diatomic-hydrogen-anions(b7f3f617-fd9e-457b-a877-a32737dca9bc).html