Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Baryon onset in a magnetic field   The critical baryon chemical potential for the onset of nuclear matter is a
function of the vacuum mass and the binding energy. Both quantities are
affected by an external magnetic field. We show within two relativistic
mean-field models - including magnetic catalysis, but omitting the anomalous
magnetic moment - that a magnetic field increases both the vacuum mass and the
binding energy. For sufficiently large magnetic fields, the effect on the
vacuum mass dominates and as a result the critical baryon chemical potential is
increased.

19
The categories of this paper are: eess
7
The categories of this paper are: hep-th
21
The categories of this paper are: adap-org
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The categories of this paper are: econ
30
The categories of this paper are: q-alg
20
The categories of this paper are: acc-phys
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The categories of this paper are: nucl-ex
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The categories of this paper are: cmp-lg
26
The categories of this paper are: bayes-an
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The categories of this paper are: ao-sci
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The categories of this paper are: solv-int
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The categories of this paper are: patt-sol
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The categories of this paper are: astro-ph
28
The categories of this paper are: alg-geom
32
The categories of this paper are: atom-ph
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The categories of this paper are: hep-lat