https://doi.org/10.1140/epjd/e2013-40672-5
Regular Article
Low-energy positron and electron scattering by methylamine*
Departamento de Física, Universidade Federal do
Paraná, Caixa Postal
19044, 81531-990
Curitiba, Paraná, Brazil
b
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Received: 29 October 2013
Received in final form: 29 November 2013
Published online: 23 January 2014
Abstract
We present elastic integral (ICS), momentum transfer (MTCS) and differential cross sections (DCS) for low-energy positron and electron scattering by methylamine. The ICS and DCS results were obtained with the Schwinger multichannel method (SMC) for both projectiles. For the electron case only, we used the SMC version implemented with pseudopotentials. Our ICS results for electron scattering were compared with the experimental total cross section from [C. Szmytkowski, A.M. Krzysztofowicz, J. Phys. B 28, 4291 (1995)] showing reasonable agreement. We found a σ∗ shape resonance at around 9.0 eV, which is close to the experimental value of 8.5 eV. We also compared our data for electron scattering with the ones obtained for positron scattering. To the best of our knowledge, there is no experimental data for positron-methylamine collision to compare against.
Contribution to the Topical Issue “Electron and Positron Induced Processes”, edited by Michael Brunger, Radu Campeanu, Masamitsu Hoshino, Oddur Ingólfsson, Paulo Limão-Vieira, Nigel Mason, Yasuyuki Nagashima and Hajime Tanuma.
© EDP Sciences, Società Italiana di Fisica and Springer-Verlag 2014
