Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The electroproduction of the $\Delta$(1232) in the chiral quark-soliton
  model   We calculate the ratios E2/M1 and C2/M1 for the electroproduction of the
$\Delta$(1232) in the region of photon virtuality $0<-q^2<1$ GeV$^2$. The
magnetic dipole amplitude M1 is also presented. The theory used is the chiral
quark-soliton model, which is based in the instanton vaccum of the QCD. The
calculations are performed in flavor SU(2) and SU(3) taking rotational
($1/N_c$) corrections into account. The results for the ratios agree
qualitatively with the available data, although the magnitude of both ratios
seems to underestimate the latest experimental results.

23
The categories of this paper are: solv-int
35
The categories of this paper are: mtrl-th
29
The categories of this paper are: funct-an
17
The categories of this paper are: q-fin
1
The categories of this paper are: cs
22
The categories of this paper are: chao-dyn
13
The categories of this paper are: quant-ph
6
The categories of this paper are: astro-ph
27
The categories of this paper are: comp-gas
18
The categories of this paper are: econ
36
The categories of this paper are: cmp-lg
24
The categories of this paper are: dg-ga
20
The categories of this paper are: acc-phys
11
The categories of this paper are: hep-lat
28
The categories of this paper are: alg-geom
30
The categories of this paper are: q-alg