Low to intermediate energy elastic electron scattering from dichloromethane (CH 2 Cl 2 )

Hlousek, B. A.; Martin, M. F.; Zawadzki, M.; Khakoo, M. A.; Machado, L. E.; Lucchese, R. R.; da Mata, V. A. S.; Iga, I.; Lee, M-T; Homem, M. G. P.

doi:10.1088/1361-6455/aaf2f4

Low to intermediate energy elastic electron scattering from dichloromethane (CH ₂ Cl ₂ )

Journal Article · Wed Dec 19 00:00:00 EST 2018 · Journal of Physics. B, Atomic, Molecular and Optical Physics

DOI:https://doi.org/10.1088/1361-6455/aaf2f4· OSTI ID:1580358

Hlousek, B. A. ^[1]; Martin, M. F. ^[1]; Zawadzki, M. ^[2]; ^[1]; Machado, L. E. ^[3]; Lucchese, R. R. ^[4]; da Mata, V. A. S. ^[3]; Iga, I. ^[3]; Lee, M-T ^[3]; ^[3]

California State Univ. (CalState), Fullerton, CA (United States)
California State Univ. (CalState), Fullerton, CA (United States); Gdańsk University of Technology, Gdańsk (Poland)
Univ. Federal de São Carlos, São Carlos, SP (Brazil)
Texas A & M Univ., College Station, TX (United States)

We report a theoretical-experimental investigation of electron scattering by dichloromethane (CH₂Cl₂) in the low- and intermediate energy ranges. Experimental elastic differential cross sections (DCS), in the incident electron energy range of 0.5–800 eV and scattering angle range of 10°–130°, were measured using a crossed beam relative flow technique. Integral and momentum-transfer cross sections were determined from the experimental DCS. Theoretical elastic differential, integral, and momentum-transfer, as well as grand-total, and total absorption cross sections were also calculated for impact energies ranging from 0.5 to 500 eV. A complex optical Hartree–Fock potential represented the electron-target interaction and a single-center expansion method combined with a Padé approximation was used to solve the scattering equations. Three resonances: a ²A₁ C–Cl kσ* resonance centered at about 3.5 eV, a ²B₂ C–Cl kσ* resonance centered at about 5 eV and a broad ²A₁ C–H kσ* resonance at about 10 eV were detected in our calculation. Further calculations of DCS were performed at an intermediate energy range of 50–800 eV, using the independent-atom model in which the atomic complex optical potential and partial-wave method were used to obtain atomic scattering amplitudes. In conclusion, comparisons of our experimental and theoretical data with very recent experimental and theoretical results are made.

View Accepted Manuscript (DOE)

Research Organization:: Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)

Sponsoring Organization:: USDOE Office of Science (SC)

Grant/Contract Number:: AC02-05CH11231

OSTI ID:: 1580358

Alternate ID(s):: OSTI ID: 22988578

Journal Information:: Journal of Physics. B, Atomic, Molecular and Optical Physics, Journal Name: Journal of Physics. B, Atomic, Molecular and Optical Physics Journal Issue: 2 Vol. 52; ISSN 0953-4075

Publisher:: IOP PublishingCopyright Statement

Country of Publication:: United States

Language:: English

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Elastic scattering of electrons from chloroform Hlousek, B. A.; Martin, M. F.; Khakoo, M. A. Physical Review A, Vol. 100, Issue 5 https://doi.org/10.1103/physreva.100.052709	journal	November 2019

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