Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Chiral Perturbation on the Lightfront   A new geometrical interpretation of chiral perturbation theory based on
topological QCD is presented in picture format. This work is a written summary
of a talk given at NAPP 2003 in Dubrovnik, Croatia.

4
The categories of this paper are: cond-mat
13
The categories of this paper are: quant-ph
35
The categories of this paper are: mtrl-th
19
The categories of this paper are: eess
9
The categories of this paper are: nlin
21
The categories of this paper are: adap-org
28
The categories of this paper are: alg-geom
3
The categories of this paper are: physics
8
The categories of this paper are: hep-ex
11
The categories of this paper are: hep-lat
6
The categories of this paper are: astro-ph
15
The categories of this paper are: nucl-ex
5
The categories of this paper are: gr-qc
23
The categories of this paper are: solv-int
33
The categories of this paper are: plasm-ph
32
The categories of this paper are: atom-ph