Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: New method for highly accurate calculations of the photodetachment
  cross-sections of the negatively charged hydrogen ions   New approach to highly accurate calculations of the photodetachment
cross-sections of the negatively charged hydrogen ions is developed. This
effective, fast and numerically stable method is based on the use of the
Rayleigh's formula for the spherical Bessel functions. Photodetachment
cross-sections of the negatively charged hydrogen ion(s) ${}^{\infty}$H$^{-}$,
${}^{1}$H$^{-}$ (protium), ${}^{2}$H$^{-}$ (deuterium D$^{-}$) and
${}^{3}$H$^{-}$ (tritium T$^{-}$) are determined with the use of highly
accurate, truly correlated, variational wave functions constructed for these
ions. Our method allows one to investigate the problem of photodetachment of
the negatively charged hydrogen ions completely, i.e. without any limitation by
numerical values of the photo-electron momentum $p_e$.

21
The categories of this paper are: adap-org
18
The categories of this paper are: econ
20
The categories of this paper are: acc-phys
1
The categories of this paper are: cs
16
The categories of this paper are: stat
0
The categories of this paper are: hep-ph
17
The categories of this paper are: q-fin
35
The categories of this paper are: mtrl-th
31
The categories of this paper are: ao-sci
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The categories of this paper are: comp-gas
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The categories of this paper are: alg-geom
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The categories of this paper are: patt-sol
8
The categories of this paper are: hep-ex
12
The categories of this paper are: nucl-th
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The categories of this paper are: eess
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The categories of this paper are: nlin