Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Quark Propagator and Chiral Symmetry with String Tension   General properties of the light and heavy quark propagators have been
investigated in the context of string tension interaction. Confinement, chiral
symmetry breaking, spectral properties of the propagator are analytically
studied and numerically validated. We show that the propagator is analytic in
the infrared region even for massless quarks with a non zero radius of
convergence. Emergence of more than one mass scale is exemplified. Massless
limit of the quark propagator does exhibit critical behaviour.

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The categories of this paper are: patt-sol
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The categories of this paper are: chao-dyn
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The categories of this paper are: q-alg
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The categories of this paper are: comp-gas
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The categories of this paper are: econ
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The categories of this paper are: q-fin
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The categories of this paper are: dg-ga
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The categories of this paper are: physics
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The categories of this paper are: gr-qc
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The categories of this paper are: ao-sci
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The categories of this paper are: alg-geom
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The categories of this paper are: nucl-th
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The categories of this paper are: chem-ph
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The categories of this paper are: atom-ph
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The categories of this paper are: hep-ex
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The categories of this paper are: supr-con