Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Inelastic cross sections and rate coefficients for collisions between CO
  and H2   A five-dimensional coupled states (5D-CS) approximation is used to compute
cross sections and rate coefficients for CO+H2 collisions. The 5D-CS
calculations are benchmarked against accurate six-dimensional close-coupling
(6D-CC) calculations for transitions between low-lying rovibrational states.
Good agreement between the two formulations is found for collision energies
greater than 10 cm-1. The 5D-CS approximation is then used to compute two
separate databases which include highly excited states of CO that are beyond
the practical limitations of the 6D-CC method. The first database assumes an
internally frozen H2 molecule and allows rovibrational transitions for v < 5
and j < 30, where v and j are the vibrational and rotational quantum numbers of
the initial state of the CO molecule. The second database allows H2 rotational
transitions for initial CO states with v < 5 and j < 10. The two databases are
in good agreement with each other for transitions that are common to both basis
sets. Together they provide data for astrophysical models which were previously
unavailable.

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The categories of this paper are: alg-geom
5
The categories of this paper are: gr-qc
2
The categories of this paper are: math
35
The categories of this paper are: mtrl-th
22
The categories of this paper are: chao-dyn
8
The categories of this paper are: hep-ex
10
The categories of this paper are: q-bio
14
The categories of this paper are: math-ph
19
The categories of this paper are: eess
18
The categories of this paper are: econ
13
The categories of this paper are: quant-ph
24
The categories of this paper are: dg-ga
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The categories of this paper are: ao-sci
7
The categories of this paper are: hep-th
9
The categories of this paper are: nlin
37
The categories of this paper are: supr-con