title: Communication: rovibrationally selected study of the N2+(X; v+=1, N+= 0-8) + Ar charge transfer reaction using the vacuum ultraviolet laser pulsed field ionization-photoion method.
abstract: By employing an electric field pulsing scheme for vacuum ultraviolet laser pulsed field ionization-photoion (PFI-PI) measurements, we have been able to prepare a rovibrationally selected PFI-PI beam of N(2)(+)(v(+) = 1, N(+)) with not only high intensity and high quantum state purity, but also high kinetic energy resolution, allowing absolute total cross sections [σ(v(+) = 1, N(+))] for the N(2)(+)(X; v(+) = 1, N(+)) + Ar, N(+) = 0-8 charge transfer reaction to be measured at center-of-mass collision energies (E(cm)) down to thermal energies. The σ(v(+) = 1, N(+) = 0-8) values determined at E(cm) = 0.04-10.00 eV are in good agreement with the theoretical predictions based on the Landau-Zener-Stückelberg formulism. Taking into account the experimental uncertainties, the σ(v(+) = 1, N(+)), N(+) = 0-8, measured at E(cm) = 1.56 eV are found to be independent of N(+).
authors.affiliation: Department of Chemistry, University of California, Davis, California 95616, USA.
authors.forename: Yih Chung
authors.initials: YC
authors.lastname: Chang
authors.forename: Hong
authors.initials: H
authors.lastname: Xu
authors.forename: Yuntao
authors.initials: Y
authors.lastname: Xu
authors.forename: Zhou
authors.initials: Z
authors.lastname: Lu
authors.forename: Yu-Hui
authors.initials: YH
authors.lastname: Chiu
authors.forename: Dale J
authors.initials: DJ
authors.lastname: Levandier
authors.forename: C Y
authors.initials: CY
authors.lastname: Ng