Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Light-cone representation of the quark Schwinger-Dyson equation   We use a light-cone approach to solve the Schwinger-Dyson equation for the
quark propagator. We show how this method can be used to solve the equation
beyond the space-like region, to which one is usually restricted with the usual
Euclidean-space approach. We work in the Landau gauge, and use an
infrared-enhanced model for the gluon propagator and include instanton effects
to get both confinement and vacuum condensates. With our models, reasonable
fits to known quantities are obtained, resulting in a light-cone quark
propagator that can be used for hadronic physics at all momentum transfers.

29
The categories of this paper are: funct-an
10
The categories of this paper are: q-bio
27
The categories of this paper are: comp-gas
4
The categories of this paper are: cond-mat
22
The categories of this paper are: chao-dyn
9
The categories of this paper are: nlin
20
The categories of this paper are: acc-phys
36
The categories of this paper are: cmp-lg
33
The categories of this paper are: plasm-ph
23
The categories of this paper are: solv-int
28
The categories of this paper are: alg-geom
18
The categories of this paper are: econ
2
The categories of this paper are: math
31
The categories of this paper are: ao-sci
16
The categories of this paper are: stat
24
The categories of this paper are: dg-ga