title: First observation of four-body breakup in electron recombination: C2D+5.
abstract: We report the first observation of four-body breakup in electron dissociative recombination of a molecular ion: C2D+5. In an ion storage ring experiment, the branching ratio for the process C2D+5 + e(-)-->C2D2 + D + D + D was determined to be 13%. This means that three covalent chemical bonds are broken as a result of the action of a single electron. This is the first time a four-body breakup of chemical bonds has been observed in a low-energy binary reaction.
authors.affiliation: Department of Physics, AlbaNova, Stockholm University, SE-106 91 Stockholm, Sweden.
authors.forename: W
authors.initials: W
authors.lastname: Geppert
authors.forename: A
authors.initials: A
authors.lastname: Ehlerding
authors.forename: F
authors.initials: F
authors.lastname: Hellberg
authors.forename: S
authors.initials: S
authors.lastname: Kalhori
authors.forename: R D
authors.initials: RD
authors.lastname: Thomas
authors.forename: O
authors.initials: O
authors.lastname: Novotny
authors.forename: S T
authors.initials: ST
authors.lastname: Arnold
authors.forename: T M
authors.initials: TM
authors.lastname: Miller
authors.forename: A A
authors.initials: AA
authors.lastname: Viggiano
authors.forename: M
authors.initials: M
authors.lastname: Larsson