Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Scalar meson exchange and the baryon spectra   We explore the role of a scalar meson exchange interaction between quarks in
a semirelativistic constituent quark model where the quarks are also subject to
a linear confinement. We search for a variational solution and study how the
spectrum evolves when the strength of the scalar meson exchange increases. Our
results have good implications on the description of the low-lying baryon
masses, especially on the long-standing problem of the relative position of the
first positive-parity (Roper resonance) and the first orbitally excited states.

11
The categories of this paper are: hep-lat
24
The categories of this paper are: dg-ga
28
The categories of this paper are: alg-geom
8
The categories of this paper are: hep-ex
20
The categories of this paper are: acc-phys
17
The categories of this paper are: q-fin
36
The categories of this paper are: cmp-lg
34
The categories of this paper are: chem-ph
15
The categories of this paper are: nucl-ex
3
The categories of this paper are: physics
23
The categories of this paper are: solv-int
30
The categories of this paper are: q-alg
16
The categories of this paper are: stat
13
The categories of this paper are: quant-ph
10
The categories of this paper are: q-bio
1
The categories of this paper are: cs