Dissociative recombination and excitation of $H_{3}^{+}$

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9 April 2001

journal article
research article
Published by American Physical Society (APS) in Physical Review A

Vol. 63 (5) , 052701
https://doi.org/10.1103/physreva.63.052701

Abstract

Using the ASTRID heavy-ion storage ring, absolute cross sections for dissociative recombination and dissociative excitation of vibrationally cold

H_{3}^{+}

have been measured as a function of energy in the region

E = 0 - 34 eV .

A thermal rate coefficient for dissociative recombination of

(1.0 \pm 0.2) \times 10^{- 7} {cm}^{3} s^{- 1}

at 300 K was obtained from cross sections at low energy. At high energy, capture into a group of doubly excited states of

H_{3}

gives rise to resonances in the dissociative recombination as well as in the dissociative excitation cross sections.

Keywords

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