title: Orientation dependence in the four-atom reaction of OH + HBr using the single-state oriented OH radical beam.
abstract: The orientation dependence for the Br atom formation in the reaction of the oriented OH radicals with HBr molecules at 0.26 eV collision energy has been observed for the first time using the hexapole electric field, and we found that the reaction cross-section for O-end attack is more favorable than that for H-end attack by a factor of 3.4 +/- 2.3.
authors.affiliation: Department of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan.
authors.forename: Po-Yu
authors.initials: PY
authors.lastname: Tsai
authors.forename: Dock-Chil
authors.initials: DC
authors.lastname: Che
authors.forename: Masaaki
authors.initials: M
authors.lastname: Nakamura
authors.forename: King-Chuen
authors.initials: KC
authors.lastname: Lin
authors.forename: Toshio
authors.initials: T
authors.lastname: Kasai