Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: R-Parity Violation and the HERA Events   The excess in high-Q^2 events at HERA is introduced and possible explanations
within the framework of R-parity violating supersymmetry are discussed.

34
The categories of this paper are: chem-ph
12
The categories of this paper are: nucl-th
33
The categories of this paper are: plasm-ph
19
The categories of this paper are: eess
8
The categories of this paper are: hep-ex
31
The categories of this paper are: ao-sci
20
The categories of this paper are: acc-phys
30
The categories of this paper are: q-alg
24
The categories of this paper are: dg-ga
6
The categories of this paper are: astro-ph
7
The categories of this paper are: hep-th
14
The categories of this paper are: math-ph
25
The categories of this paper are: patt-sol
27
The categories of this paper are: comp-gas
2
The categories of this paper are: math
18
The categories of this paper are: econ