Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Self compensation of classical non abelian charge   A new classical, non singular solution with arbitrarily low energy is found
for SU(2) non abelian fields in the presence of a static charge. Physically it
means that a classical charge coupled to any SU(N) non abelian gauge field will
develop a pure gauge field, carrying no energy, that will completely screen it
- there are no visible classical non abelian charges.

18
The categories of this paper are: econ
37
The categories of this paper are: supr-con
10
The categories of this paper are: q-bio
30
The categories of this paper are: q-alg
11
The categories of this paper are: hep-lat
35
The categories of this paper are: mtrl-th
14
The categories of this paper are: math-ph
26
The categories of this paper are: bayes-an
1
The categories of this paper are: cs
33
The categories of this paper are: plasm-ph
17
The categories of this paper are: q-fin
36
The categories of this paper are: cmp-lg
23
The categories of this paper are: solv-int
12
The categories of this paper are: nucl-th
3
The categories of this paper are: physics
15
The categories of this paper are: nucl-ex