Low-energy outer-shell photodetachment of the negative ion of boron
Author(s)
Wang, Kedong
Zatsarinny, Oleg
Bartschat, Klaus
Griffith University Author(s)
Year published
2016
Metadata
Show full item recordAbstract
The photodetachment of the negative ion of boron, B− (2s2 2p2)3 P, is investigated by employing the B-spline R-matrix method for photon energies ranging from threshold to 12 eV. A multi-configuration Hartree-Fock method with nonorthogonal, term-dependent orbitals is employed to generate accurate initial bound-state and final continuum-state wavefunctions. The close-coupling expansion includes all principal scattering channels for photodetachment from both the 2p and 2s orbitals. The calculated photodetachment cross sections are in good agreement with the available experimental data. Several prominent resonance features are ...
View more >The photodetachment of the negative ion of boron, B− (2s2 2p2)3 P, is investigated by employing the B-spline R-matrix method for photon energies ranging from threshold to 12 eV. A multi-configuration Hartree-Fock method with nonorthogonal, term-dependent orbitals is employed to generate accurate initial bound-state and final continuum-state wavefunctions. The close-coupling expansion includes all principal scattering channels for photodetachment from both the 2p and 2s orbitals. The calculated photodetachment cross sections are in good agreement with the available experimental data. Several prominent resonance features are predicted, thereby providing new challenges in the study of this highly correlated process. To classify the resonance structure, both the partial cross sections and the main contributions of the individual scattering channels are discussed. The presented cross sections, along with the asymmetry parameter β for the angular distribution, are believed to be the most comprehensive and accurate dataset currently available for the B− photodetachment process at low energies.
View less >
View more >The photodetachment of the negative ion of boron, B− (2s2 2p2)3 P, is investigated by employing the B-spline R-matrix method for photon energies ranging from threshold to 12 eV. A multi-configuration Hartree-Fock method with nonorthogonal, term-dependent orbitals is employed to generate accurate initial bound-state and final continuum-state wavefunctions. The close-coupling expansion includes all principal scattering channels for photodetachment from both the 2p and 2s orbitals. The calculated photodetachment cross sections are in good agreement with the available experimental data. Several prominent resonance features are predicted, thereby providing new challenges in the study of this highly correlated process. To classify the resonance structure, both the partial cross sections and the main contributions of the individual scattering channels are discussed. The presented cross sections, along with the asymmetry parameter β for the angular distribution, are believed to be the most comprehensive and accurate dataset currently available for the B− photodetachment process at low energies.
View less >
Journal Title
European Physical Journal D
Volume
70
Issue
4
Subject
Physical sciences
Science & Technology
Physical Sciences
Optics
Physics, Atomic, Molecular & Chemical
Physics