Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: CP-violation in the neutralino system   Supersymmetric extensions of the Standard Model provide new sources of CP
violation. Here the CP properties of neutralinos are described and possible
experimental signatures of CP--violation in the neutralino production processes
at e+e- linear colliders are discussed.

31
The categories of this paper are: ao-sci
23
The categories of this paper are: solv-int
17
The categories of this paper are: q-fin
5
The categories of this paper are: gr-qc
33
The categories of this paper are: plasm-ph
34
The categories of this paper are: chem-ph
4
The categories of this paper are: cond-mat
25
The categories of this paper are: patt-sol
32
The categories of this paper are: atom-ph
14
The categories of this paper are: math-ph
30
The categories of this paper are: q-alg
3
The categories of this paper are: physics
8
The categories of this paper are: hep-ex
22
The categories of this paper are: chao-dyn
2
The categories of this paper are: math
20
The categories of this paper are: acc-phys