Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Chiral Symmetry Breaking and Scalar Confinement   We address the old difficulty in accommodating the scalar quark-antiquark
confining potential together with chiral symmetry breaking. We develop a quark
confining potential inspired in the QCD scalar flux tube. The coupling to
quarks consists in a double vector vertex. We study the Dirac and spin
structure of this potential. In the limit of massless quarks the quark vertex
is vector. Nevertheless symmetry breaking generates a new scalar quark vertex.
In the heavy quark limit the coupling is mostly scalar. We solve the mass gap
equation and find that this potential produces spontaneous chiral symmetry
breaking for light quarks. The quantitative results of this model are
encouraging.

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The categories of this paper are: hep-th
37
The categories of this paper are: supr-con
22
The categories of this paper are: chao-dyn
4
The categories of this paper are: cond-mat
30
The categories of this paper are: q-alg
3
The categories of this paper are: physics
23
The categories of this paper are: solv-int
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The categories of this paper are: q-bio
1
The categories of this paper are: cs
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The categories of this paper are: gr-qc
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The categories of this paper are: q-fin
21
The categories of this paper are: adap-org
31
The categories of this paper are: ao-sci
28
The categories of this paper are: alg-geom
18
The categories of this paper are: econ
16
The categories of this paper are: stat