Abstract

Differential cross sections were determined for the production of H − fragments produced by the collision of H 2 + on Kr at projectile energies between 1.0 to 5.0 keV and for scattering angles from −4° to 4°. The H − distributions are observed to fit to the scaling law ( 1 E ) dσ dω = F(Eθ 2) , where E is the incident energy. Two structures found at 4.0 and 7.3 eV yield information about the production of H −. These are associated with the direct dissociation and predissociative states of H 2 + interacting with the target.

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