title: Dynamics of three-body breakup in dissociative recombination: H(2)O(+).
abstract: 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.
authors.affiliation: Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, Tennessee 37831-6377, USA.
authors.forename: S
authors.initials: S
authors.lastname: Datz
authors.forename: R
authors.initials: R
authors.lastname: Thomas
authors.forename: S
authors.initials: S
authors.lastname: Rosén
authors.forename: M
authors.initials: M
authors.lastname: Larsson
authors.forename: A M
authors.initials: AM
authors.lastname: Derkatch
authors.forename: F
authors.initials: F
authors.lastname: Hellberg
authors.forename: W
authors.initials: W
authors.lastname: van der Zande