Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Colored Preons   Previous studies have suggested complementary models of the elementary
particles as (a) quantum knots and (b) preonic nuclei that are field and
particle descriptions, respectively, of the same particles. This earlier work,
carried out in the context of standard electroweak (SU(2) x U(1)) physics, is
here extended to the strong interactions by the introduction of color (SU(3))
charges.

29
The categories of this paper are: funct-an
33
The categories of this paper are: plasm-ph
37
The categories of this paper are: supr-con
35
The categories of this paper are: mtrl-th
34
The categories of this paper are: chem-ph
30
The categories of this paper are: q-alg
20
The categories of this paper are: acc-phys
11
The categories of this paper are: hep-lat
31
The categories of this paper are: ao-sci
3
The categories of this paper are: physics
17
The categories of this paper are: q-fin
8
The categories of this paper are: hep-ex
24
The categories of this paper are: dg-ga
19
The categories of this paper are: eess
14
The categories of this paper are: math-ph
10
The categories of this paper are: q-bio