Absolute total cross sections for electron scattering on CH₄molecules in the 1-4000 eV energy range

Abstract

Abstract. Absolute total cross sections for electron-methane scattering have been measured in the energy range from 0.9 to 4000eV i n two separate experiments. The present results, the first available above 500 eV, are in good agreement with other recent experimental and theoretical data. The law energy scattering is dominated by a shape resonance; a broad hump has been detected centred around 100eV. A short critical review of previous measurements is given. 1.