Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Microscopic calculation of the 3He(alpha,gamma)7Be and
  3H(alpha,gamma)7Li capture cross sections using realistic interactions   The radiative capture cross sections for the 3He(alpha,gamma)7Be and
3H(alpha,gamma)7Li reactions are calculated in the fully microscopic fermionic
molecular dynamics approach using a realistic effective interaction that
reproduces the nucleon-nucleon scattering data. At large distances bound and
scattering states are described by antisymmetrized products of 4He and 3He/3H
ground states. At short distances the many-body Hilbert space is extended with
additional many-body wave functions needed to represent polarized clusters and
shell-model-like configurations. Properties of the bound states are described
well, as are the scattering phase shifts. The calculated S factor for the
3He(alpha,gamma)7Be reaction agrees very well with recent experimental data
both in absolute normalization and energy dependence. In case of the
3H(alpha,gamma)7Li reaction the calculated S factor is larger than available
experimental data by about 15%.

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The categories of this paper are: mtrl-th
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The categories of this paper are: patt-sol
0
The categories of this paper are: hep-ph
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The categories of this paper are: funct-an
5
The categories of this paper are: gr-qc
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The categories of this paper are: q-fin
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The categories of this paper are: cmp-lg
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The categories of this paper are: q-alg
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The categories of this paper are: q-bio
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The categories of this paper are: quant-ph
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The categories of this paper are: nlin
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The categories of this paper are: eess
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The categories of this paper are: atom-ph
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The categories of this paper are: cs
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The categories of this paper are: math
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The categories of this paper are: supr-con