Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A Relativistic Quark Model for Baryons   We present a relativistic quark model for baryons, based on the
Bethe-Salpeter equation in instantaneous approximation. Confinement is
implemented by an interaction kernel which essentially is a linearly rising
potential with a spin-dependence chosen such as to minimize spin-orbit effects.
The fine structure of the baryon spectrum follows from an effective
quark-interaction based on instanton effects. Results for the spectra of all
baryons build from u,d,s-quarks are presented. In particular it is found, that
the present relativistic setup can account for the low position of Roper-like
resonances in all sectors.

36
The categories of this paper are: cmp-lg
10
The categories of this paper are: q-bio
27
The categories of this paper are: comp-gas
23
The categories of this paper are: solv-int
37
The categories of this paper are: supr-con
22
The categories of this paper are: chao-dyn
11
The categories of this paper are: hep-lat
5
The categories of this paper are: gr-qc
25
The categories of this paper are: patt-sol
29
The categories of this paper are: funct-an
1
The categories of this paper are: cs
6
The categories of this paper are: astro-ph
21
The categories of this paper are: adap-org
8
The categories of this paper are: hep-ex
30
The categories of this paper are: q-alg
28
The categories of this paper are: alg-geom