Year: 2004
Type: article
Abstract: The dynamics of the three-body dissociative charge exchange of fast (12 keV) ${\mathrm{H}}_{3}^{+}$ and ${\mathrm{D}}_{3}^{+}$ with Cs have been studied using multiparticle translational spectroscopy. The observed partitioning of product momenta was found to be state-specific and yields insights into the nuclear motion during dissociation for the three lowest-lying $2s\text{ }\text{ }^{2}A_{1}^{\ensuremath{'}}$, $2p\text{ }\text{ }^{2}A_{2}^{\ensuremath{'}\ensuremath{'}}$, and $3p\text{ }\text{ }^{2}E^{\ensuremath{'}}$ metastable Rydberg states of ${\mathrm{H}}_{3}$ and the $2s\text{ }\text{ }^{2}A_{1}^{\ensuremath{'}}$ and $2p\text{ }\text{ }^{2}A_{2}^{\ensuremath{'}\ensuremath{'}}$ states for ${\mathrm{D}}_{3}$. These results provide direct empirical information on the nonadiabatic couplings that govern the three-body dissociation of the lowest-lying Rydberg states of ${\mathrm{H}}_{3}$ and ${\mathrm{D}}_{3}$.
Source: Physical Review Letters
Institution: University of California San Diego
Language: English
Topic: Atomic and Molecular Physics
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
Funder: U.S. Air Force
Award: G7090116110
OpenAlex ID: W2108069742