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

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Krupa, K. and Lange, E. and Blanco Ramos, Francisco and Barbosa, A. S. and Pastega,, D. F. and Sanchez, S. d’A. and Bettega, M. H. F. and García Jurado, G. (2018) Experimental and theoretical electron-scattering cross- section data for dichloromethane. Physical review A, 97 (4). ISSN 2469-9926

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Official URL: http://dx.doi.org/10.1103/PhysRevA.97.042702


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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 0⁰ to 180⁰ together with total cross section within the IAM-SCAR+I framework.


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©2018 American Physical Society.
Portuguese National Funding Agency FCT [SFRH/BD/52536/2014, IF-FCT IF/00380/2014, UID/FIS/00068/2013]; Brazilian Agency Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq); Science Without Borders programme for opportunities to study abroad; Brazilian Agency Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior (CAPES), under CAPES/FCT Programme (CAPES) [23038.002465/2014-87]; Brazilian Agency Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior (CAPES), under CAPES/FCT Programme (FCT) [2267]; CNPq; Spanish Ministerio de Economia y Competitividad [FIS2012-31230]; Radiation Biology and Biophysics Doctoral Training Programme (RaBBiT) [PD/00193/2010, UID/Multi/04378/2013]

Uncontrolled Keywords:Attachment; Molecules; Ch₂Cl₂; Impact; Pseudopotentials; Chloromethanes; ChCl₃; Chlorofluoromethanes; Collisions; Orbitals
Subjects:Sciences > Physics > Nuclear physics
ID Code:47664
Deposited On:12 Jul 2018 09:23
Last Modified:10 Dec 2018 14:57

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