Joint experimental and theoretical study on low-energy elastic electron scattering by gaseous alkynes: Differential cross sections, shape resonances, and methylation effects - Publication - Bridge of Knowledge

Search

Joint experimental and theoretical study on low-energy elastic electron scattering by gaseous alkynes: Differential cross sections, shape resonances, and methylation effects

Abstract

A detailed comparison of experimental and theoretical elastic cross sections for low-energy electron scattering by ethyne, taken earlier in our group by Gauf et al. [Phys. Rev. A 87, 012710 (2013)], and some of its methylated derivatives, propyne, and the isomers 1-butyne and 2-butyne, taken here, are presented. The present differential cross sections were measured at incident electron energies ranging from 1 eV to 30 eV and for scattering angles from 5◦ to 130◦ using the relative flow method with an aperture gas source. Our earlier work was taken over a larger energy range of up to 100 eV. The theoretical calculations were carried out for impact energies up to 30 eV, employing the Schwinger multichannel method with pseudopotentials in the static-exchange plus polarization approximation. In addition to the differential cross sections, we present the integral and momentum transfer cross sections with which we discuss the shape resonances present in these systems and other physical phenomena, such as the presence of Ramsauer-Townsend minimum. We also compare our theoretical and experimental results with previous data that are available in the literature.

Citations

  • 0

    CrossRef

  • 0

    Web of Science

  • 0

    Scopus

Authors (12)

Cite as

Full text

download paper
downloaded 3 times
Publication version
Accepted or Published Version
DOI:
Digital Object Identifier (open in new tab) 10.1103/PhysRevA.105.042809
License
Copyright (2022 American Physical Society)

Keywords

Details

Category:
Articles
Type:
artykuły w czasopismach
Published in:
PHYSICAL REVIEW A no. 105,
ISSN: 2469-9926
Language:
English
Publication year:
2022
Bibliographic description:
Khakoo M., Tatreau G., Childers J. G., Oen K., Fernandez J., Hlousek B., Zawadzki M., Bardela F. P., Dalagnol L. V. S., Moreira G. M., Bettega M. H. F., Barbosa A. S.: Joint experimental and theoretical study on low-energy elastic electron scattering by gaseous alkynes: Differential cross sections, shape resonances, and methylation effects// PHYSICAL REVIEW A -Vol. 105,iss. 4 (2022), s.042809-
DOI:
Digital Object Identifier (open in new tab) 10.1103/physreva.105.042809
Sources of funding:
  • COST_FREE
Verified by:
Gdańsk University of Technology

seen 76 times

Recommended for you

Meta Tags