Low-energy electron scattering from molecular hydrogen: Excitation of the X 1 Sg+ to b 3 Su+ transition

Zawadzki, M. and Wright, R. and Dolmat, G. and Martin, M. and Diaz, B. and Hargreaves, L. and Coleman, D. et al. 2018. Low-energy electron scattering from molecular hydrogen: Excitation of the X 1 Sg+ to b 3 Su+ transition. Physical Review A - Atomic, Molecular, and Optical Physics. 98 (6): Article ID 062704.

Source Title

Physical Review A - Atomic, Molecular, and Optical Physics

DOI

10.1103/PhysRevA.98.062704

ISSN

2469-9926

School

School of Electrical Engineering, Computing and Mathematical Science (EECMS)

URI

http://hdl.handle.net/20.500.11937/73817

Collection

Curtin Research Publications

Abstract

We present time-of-flight differential cross-section measurements and convergent close-coupling calculations of differential cross sections for the electron-impact excitation of the XSg+1?bSu+3 transition in molecular hydrogen. A part of this work was recently published [M. Zawadzki, Phys. Rev. A 97, 050702(R) (2018)10.1103/PhysRevA.97.050702]. In this work, agreement between theory and experiment is excellent overall, and marks a transition in electron-molecule scattering where differential scattering of excitation is found to be in such precise agreement. We also present total electron-impact excitation differential cross sections for H2 for which agreement between theory and experiment is found to be excellent.