Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Chiral-symmetry breaking and confinement in Minkowski space   We present a model for the quark-antiquark interaction formulated in
Minkowski space using the Covariant Spectator Theory. The quark propagators are
dressed with the same kernel that describes the interaction between different
quarks. By applying the axial-vector Ward-Takahashi identity we show that our
model satisfies the Adler-zero constraint imposed by chiral symmetry. For this
model, our Minkowski-space results of the dressed quark mass function are
compared to lattice QCD data obtained in Euclidean space. The mass function is
then used in the calculation of the electromagnetic pion form factor in
relativistic impulse approximation, and the results are presented and compared
with the experimental data from JLab.

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The categories of this paper are: gr-qc
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The categories of this paper are: chem-ph
21
The categories of this paper are: adap-org
29
The categories of this paper are: funct-an
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The categories of this paper are: eess
31
The categories of this paper are: ao-sci
18
The categories of this paper are: econ
9
The categories of this paper are: nlin
27
The categories of this paper are: comp-gas
26
The categories of this paper are: bayes-an
10
The categories of this paper are: q-bio
25
The categories of this paper are: patt-sol
16
The categories of this paper are: stat
15
The categories of this paper are: nucl-ex
37
The categories of this paper are: supr-con
13
The categories of this paper are: quant-ph