TITLE

Low-energy outer-shell photodetachment of the negative ion of boron

AUTHOR(S)
Wang, Kedong; Zatsarinny, Oleg; Bartschat, Klaus
PUB. DATE
April 2016
SOURCE
European Physical Journal D -- Atoms, Molecules, Clusters & Opti;Apr2016, Vol. 70 Issue 4, p1
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The photodetachment of the negative ion of boron, B(2 s2 p)P, is investigated by employing the B-spline R-matrixmethod 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 2 p and 2 s 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. Graphical abstract: [Figure not available: see fulltext.]
ACCESSION #
114245351

 

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