title: Two-center double-capture interference in fast He2+ + H2 collisions.
abstract: We report the first observation of Young-type interference effects in a two-electron transfer process. These effects change strongly as the projectile velocity changes in fast (1.2 and 2.0 MeV) He(2+) + H(2) collisions as manifested in strong variations of the double-electron capture rates with the H(2) orientation. This is consistent with fully quantum mechanical calculations, which ignore sequential electron transfer, and a simple projectile de Broglie wave picture assuming that two-electron transfer probabilities are higher in collisions where the projectile passes close to either one of the H(2) nuclei.
authors.affiliation: Department of Physics, Stockholm University, AlbaNova University Center, SE-106 91 Stockholm, Sweden.
authors.forename: Deepankar
authors.initials: D
authors.lastname: Misra
authors.forename: H T
authors.initials: HT
authors.lastname: Schmidt
authors.forename: M
authors.initials: M
authors.lastname: Gudmundsson
authors.forename: D
authors.initials: D
authors.lastname: Fischer
authors.forename: N
authors.initials: N
authors.lastname: Haag
authors.forename: H A B
authors.initials: HA
authors.lastname: Johansson
authors.forename: A
authors.initials: A
authors.lastname: Källberg
authors.forename: B
authors.initials: B
authors.lastname: Najjari
authors.forename: P
authors.initials: P
authors.lastname: Reinhed
authors.forename: R
authors.initials: R
authors.lastname: Schuch
authors.forename: M
authors.initials: M
authors.lastname: Schöffler
authors.forename: A
authors.initials: A
authors.lastname: Simonsson
authors.forename: A B
authors.initials: AB
authors.lastname: Voitkiv
authors.forename: H
authors.initials: H
authors.lastname: Cederquist