Light antiproton one-electron quasi-molecular ions within the relativistic A-DKB method

In the present work, two quasi-molecular compounds each involving one antiproton and one electron (p̄), He+−p̄ and H−p̄, are investigated. Using completely relativistic calculations within the finite-basis method adapted to systems with axial symmetry, the adiabatic potential curves are constructed...

Full description

Saved in:
Bibliographic Details
Published in:The Journal of chemical physics 2023-12, Vol.159 (21)
Main Authors: Anikin, A., Danilov, A., Glazov, D., Kotov, A., Solovyev, D.
Format: Article
Language:English
Subjects:
Antiparticles
Antiprotons
Dirac equation
Mathematical analysis
Molecular ions
Relativistic effects
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In the present work, two quasi-molecular compounds each involving one antiproton and one electron (p̄), He+−p̄ and H−p̄, are investigated. Using completely relativistic calculations within the finite-basis method adapted to systems with axial symmetry, the adiabatic potential curves are constructed by numerically solving the two-center Dirac equation. The binding energies of electron are obtained as a function of the inter-nuclear distance and compared with the corresponding nonrelativistic values and relativistic leading-order corrections calculated in the framework of other approaches. A semantic analysis of antiproton quasi-molecular ions with compounds containing a proton (p) instead of an antiproton is given. The advantages of the A-DKB method are demonstrated.
ISSN:0021-9606
1089-7690
DOI:10.1063/5.0181614