title: Semiclassical scattering on conical intersections.
abstract: We apply a semiclassical approach to the scattering problem of a vibrational wave packet in the vicinity of a conical intersection of electronic energy surfaces and derive analytical expressions for the scattering matrix. The latter are valid when the scattering length that scales as square root(h) is small and a wave packet passes through the scattering region with a constant velocity. The analytical results are in excellent agreement with numerical simulations for a realistic set of parameters.
authors.affiliation: Center for Nonlinear Studies, Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA. apiryat@lanl.gov
authors.forename: Andrei
authors.initials: A
authors.lastname: Piryatinski
authors.forename: Misha
authors.initials: M
authors.lastname: Stepanov
authors.forename: Sergei
authors.initials: S
authors.lastname: Tretiak
authors.forename: Vladimir
authors.initials: V
authors.lastname: Chernyak