https://doi.org/10.1140/epjd/s10053-024-00800-2
Regular Article - Atomic and Molecular Collisions
Can a positron bind to the para-benzoquinone molecule?
1
Departamento de Física, Universidade Estadual do Centro-Oeste, 85040-167, Guarapuava, Paraná, Brazil
2
Departamento de Física, Universidade Federal do Paraná, Caixa Postal 19044, 81531-980, Curitiba, Paraná, Brazil
a
gmm08@fisica.ufpr.br
b
bettega@fisica.ufpr.br
Received:
29
September
2023
Accepted:
5
January
2024
Published online:
26
January
2024
In this work, we report elastic cross sections for the scattering of low-energy positrons by para-benzoquinone, for energies up to 6 eV. The cross sections were calculated with the Schwinger multichannel method in the static plus polarization approximation at two different polarization schemes. Our computed elastic integral cross section indicates the presence of a bound state in the 
scattering symmetry. In the absence of results in the literature on collisions of positrons with para-benzoquinone, the present integral cross sections results were compared with the data available in the literature for the benzene and pyrazine molecules.
Notes to production: T.I.: Electron and Positron Interactions and Their Applications-a tribute to Professor Michael Brunger. Guest editors: Márcio Henrique Franco Bettega, Stephen Buckman, Dragana Maric, Sylwia Ptasinska, Ron White.
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