Low-energy electron scattering by carbon tetrachloride

Author： Moreira Giseli M Pastega Diego F Bettega Márcio H F Moreira Giseli M

E-ISSN： 1361-6455|49|3|35202-35206

ISSN： 0953-4075

Source： Journal of Physics B: Atomic, Molecular and Optical Physics, Vol.49, Iss.3, 2016-02, pp. : 35202-35206

Disclaimer: Any content in publications that violate the sovereignty, the constitution or regulations of the PRC is not accepted or approved by CNPIEC.

Previous Menu Next

Abstract

In this work we report calculated integral and differential elastic cross sections for the scattering of low-energy electrons by CCl₄. We employ the Schwinger multichannel method with pseudopotentials to compute the cross sections in the static-exchange and static-exchange plus polarization approximations for energies up to 15 eV. We report two shape resonances located at 0.75 eV and 8 eV belonging to the T ₂ and E symmetries of the T _d group respectively. We also look at the s-wave contribution to the integral cross section and find no evidence of the presence of a Ramsauer–Townsend minimum. We compare our calculated cross sections with available experimental and theoretical results and find that in general the agreement is good.