Experimental and theoretical electron-scattering cross-section data for dichloromethane

K. Krupa, E. Lange, F. Blanco, A. S. Barbosa, D. F. Pastega, S. d’A. Sanchez, M. H. F. Bettega, G. García, P. Limão-Vieira, and F. Ferreira da Silva
Phys. Rev. A 97, 042702 – Published 10 April 2018

Abstract

We report on a combination of experimental and theoretical investigations into the elastic differential cross sections (DCSs) and integral cross sections for electron interactions with dichloromethane, CH2Cl2, in the incident electron energy over the 7.0–30 eV range. Elastic electron-scattering cross-section calculations have been performed within the framework of the Schwinger multichannel method implemented with pseudopotentials (SMCPP), and the independent-atom model with screening-corrected additivity rule including interference-effects correction (IAM-SCAR+I). The present elastic DCSs have been found to agree reasonably well with the results of IAM-SCAR+I calculations above 20 eV and also with the SMC calculations below 30 eV. Although some discrepancies were found for 7 eV, the agreement between the two theoretical methodologies is remarkable as the electron-impact energy increases. Calculated elastic DCSs are also reported up to 10000 eV for scattering angles from 0° to 180° together with total cross section within the IAM-SCAR+I framework.

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  • Received 3 January 2018
  • Corrected 16 May 2018

DOI:https://doi.org/10.1103/PhysRevA.97.042702

©2018 American Physical Society

Physics Subject Headings (PhySH)

Atomic, Molecular & Optical

Corrections

16 May 2018

Correction: The numerical entries in the last row of Table II contained errors and have been corrected.

Authors & Affiliations

K. Krupa1, E. Lange2, F. Blanco3, A. S. Barbosa4, D. F. Pastega4, S. d’A. Sanchez4, M. H. F. Bettega4,*, G. García1,*, P. Limão-Vieira2,*, and F. Ferreira da Silva2

  • 1Instituto de Física Fundamental, Consejo Superior de Investigaciones Científicas (CSIC), Serrano 113-bis, 28006 Madrid, Spain
  • 2Laboratório de Colisões Atómicas e Moleculares, CEFITEC, Departamento de Física, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal
  • 3Departamento de Fisica Atomica, Molecular y Nuclear, Facultad de Ciencias Fisicas, Universidad Complutense de Madrid, E-28040 Madrid, Spain
  • 4Departamento de Física, Universidade Federal do Paraná, Caixa Postal 19044, 81531-990 Curitiba, Paraná, Brazil

  • *Corresponding authors: bettega@fisica.ufpr.br; g.garcia@csic.es; plimaovieira@fct.unl.pt

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Issue

Vol. 97, Iss. 4 — April 2018

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