Measurement of differential cross sections for individual rotational quantum transitions in the scattering of Li+ by H2 at Ec.m.= 0.6 eV

Abstract

Individual rotational quantum transitions have been resolved in the energy loss spectra of Li⁺ ions after scattering by H₂ molecules. Time of flight measurements at 0.6 eV centre of mass energy yield differential inelastic cross sections for the j= 0 →j= 2 and j= 1 →j= 3 rotational transitions relative to the differential elastic cross section (j= 0 →j= 0, j= 1→j= 1) at centre of mass angles between 14 and 32°.