Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Properties of dense, asymmetric nuclear matter in
  Dirac-Brueckner-Hartree-Fock approach   Within the Dirac-Brueckner-Hartree-Fock approach, using the Bonn potentials,
we investigate the properties of dense, asymmetric nuclear matter and apply it
to neutron stars. In the actual calculations of the nucleon self-energies and
the energy density of matter, we study in detail the validity of an
angle-averaged approximation and an averaging of the total momentum squared of
interacting two-nucleons in nuclear matter. For practical use, we provide
convenient parametrizations for the equation of state for symmetric nuclear
matter and pure neutron matter. We also parametrize the nucleon self-energies
in terms of polynomials of nucleon momenta. Those parametrizations can
accurately reproduce the numerical results up to high densities.

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The categories of this paper are: hep-th
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The categories of this paper are: adap-org
16
The categories of this paper are: stat
18
The categories of this paper are: econ
31
The categories of this paper are: ao-sci
14
The categories of this paper are: math-ph
19
The categories of this paper are: eess
32
The categories of this paper are: atom-ph
30
The categories of this paper are: q-alg
22
The categories of this paper are: chao-dyn
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The categories of this paper are: q-fin
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The categories of this paper are: gr-qc
35
The categories of this paper are: mtrl-th
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The categories of this paper are: nlin
29
The categories of this paper are: funct-an
11
The categories of this paper are: hep-lat