Dynamics of three-body breakup in dissociative recombination: H(2)O(+).
To better understand the propensity for the three-body breakup in dissociative recombination (DR) of dihydrides ( H(3)(+), NH(2)(+), CH(2)(+), and H(2)O(+)), we undertook a study of the dynamics of this process. A study of DR of H(2)O(+) to give O + H + H was carried out at the CRYRING Heavy-Ion Storage Ring in Stockholm. With the stored beam energy of 4.5 MeV, we separated the O signal from the H signals with a differential absorber, thus reducing the problem to a sum of two two-body problems. Results included (1) the ratio of O((3)P) to O((1)D) product, (2) the distribution of recoil-kinetic energy between the two hydrogen atoms, (3) the angular distribution between the hydrogen atoms in the O((3)P) channel and in the O((1)D) channel.
Datz
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Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, Tennessee 37831-6377, USA.
Thomas
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Rosén
S
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Larsson
M
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Derkatch
A M
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Hellberg
F
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van der Zande
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