Elastic Positron Collisions with 1,1-Difluoroethylene

J Phys Chem A. 2021 Aug 19;125(32):6949-6953. doi: 10.1021/acs.jpca.1c04047. Epub 2021 Aug 9.

Abstract

This work reports a theoretical investigation on the elastic-positron collision with the 1,1-difluoroethylene molecule for energies up to 10 eV. We have employed the Schwinger multichannel method in the static-plus polarization level of approximation to obtain the integral and differential cross sections. In order to account for the long-range potential due to the permanent dipole moment of the target, the Born-closure procedure has been employed. Also, our present differential cross sections have been applied to estimate a correction to the total cross section measurements available in the literature.