Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On the Stability of Quark Solitons in QCD   We critically re-examine our earlier derivation of the effective low energy
action for QCD in 4 dimensions with chiral fields transforming non-trivially
under both color and flavor, using the method of anomaly integration. We find
several changes with respect to our previous results, leading to much more
compact expressions, and making it easier to compare with results of other
approaches to the same problem. With the amended effective action, we find that
there are no stable soliton solutions. In the context of the quark soliton
program, we interpret this as an indication that the full low-energy effective
action must include additional terms, reflecting possible modifications at
short distances and/or the non-trivial structure of the gauge fields in the
vacuum, such as $ <F_{\mu\nu}^2> \neq 0$. Such terms are absent in the
formalism based on anomaly integration.

27
The categories of this paper are: comp-gas
13
The categories of this paper are: quant-ph
35
The categories of this paper are: mtrl-th
1
The categories of this paper are: cs
30
The categories of this paper are: q-alg
29
The categories of this paper are: funct-an
34
The categories of this paper are: chem-ph
7
The categories of this paper are: hep-th
19
The categories of this paper are: eess
8
The categories of this paper are: hep-ex
9
The categories of this paper are: nlin
3
The categories of this paper are: physics
16
The categories of this paper are: stat
28
The categories of this paper are: alg-geom
37
The categories of this paper are: supr-con
32
The categories of this paper are: atom-ph