Work

Applications of the Schwinger multichannel method in elastic collisions of slow-electrons with the benzoic acid molecule

Year: 2025

Type: article

Abstract: We report integral, momentum transfer, and differential cross sections for elastic electron scattering by benzoic acid. The scattering calculations were performed by using the Schwinger multichannel method in the static-exchange and static-exchange plus polarization approximations for impact energies ranging from 0.1 to 15 eV. Since benzoic acid is polar, it is necessary to account for the long-range potential, which was done through Born-closure procedure. Our calculations revealed the presence of four π∗ resonances, in which the three low-lying ones are associated with a shape character, while the higher-lying resonance has a mixed character of shape and core-excited shape resonances. The positions of these resonant structures were compared with electron transmission spectroscopy results from Scheer et al. [J. Phys. Chem. A 118(35), 7242–7248 (2014)]. We also suggest a correlation between the dissociative electron attachment spectrum reported by Zawadzki et al. [J. Chem. Phys. 152(17), 174304 (2020)] and the π∗ resonances obtained in the present work.

Source: Journal of Applied Physics

DOI: 10.1063/5.0263614

Authors: Giseli M. Moreira, Luiz V. S. Dalagnol, Alessandra Souza Barbosa, Márcio H. F. Bettega

Institutions: Universidade Estadual do Centro-Oeste, Universidade Federal do Paraná

Language: English

Topic: Atomic and Molecular Physics

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $3,500

Funders: Coordenação de Aperfeiçoamento de Pessoal de Nível Superior, Conselho Nacional de Desenvolvimento Científico e Tecnológico