Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: In-medium covariant propagator of baryons under a strong magnetic field:
  effect of the intrinsic magnetic moments   We obtain the covariant propagator at finite temperature for interacting
baryons immersed in a strong magnetic field. The effect of the intrinsic
magnetic moments on the Green function are fully taken into account. We make an
expansion in terms of eigenfunctions of a Dirac field, which leads us to a
compact form of its propagator. We present some simple applications of these
propagators, where the statistical averages of nuclear currents and energy
density are evaluated.

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The categories of this paper are: hep-th
28
The categories of this paper are: alg-geom
2
The categories of this paper are: math
8
The categories of this paper are: hep-ex
37
The categories of this paper are: supr-con
11
The categories of this paper are: hep-lat
6
The categories of this paper are: astro-ph
27
The categories of this paper are: comp-gas
33
The categories of this paper are: plasm-ph
26
The categories of this paper are: bayes-an
24
The categories of this paper are: dg-ga
25
The categories of this paper are: patt-sol
4
The categories of this paper are: cond-mat
1
The categories of this paper are: cs
16
The categories of this paper are: stat
34
The categories of this paper are: chem-ph