Photodetachment cross-section of the negatively charged hydrogen ion

2015/10/16 by Alexei M. Frolov, Frolov, Alexei M.
Physics and Astronomy · #Atomic Physics (physics.atom-ph) #FOS: Physical sciences #Solar and Stellar Astrophysics (astro-ph.SR) #astro-ph.SR #physics.atom-ph

paper · pdf · doi:10.48550/arxiv.1510.04766

arXiv admin note: substantial text overlap with arXiv:1505.00004

arxiv created 2015/11/25 · arxiv updated 2015/11/26

Abstract

Photodetachment cross-section σ_ph(p_e) of the negatively charged hydrogen ion H^- is determined with the use of highly accurate variational wave functions constructed for this ion. Photodetachment cross-sections of the H^- ion are also studied for very small and very large values of the photo-electron momentum p_e. Maximum of this cross-section and its location have been evaluated to high accuracy. In particular, we have found that [σ_ph(p_e)]_max ≈ 3.8627035742 ⋅ 10^-17 cm² at p_e ≈ 0.113206(1) a.u. Our method is based upon the Rayleigh's formula for spherical Bessel functions.

Citations

• New method for highly accurate calculations of the photodetachment cross-sections of the negatively charged hydrogen ions

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