Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Search for RP-violating SUSY and excited fermions at HERA   Recent results from searches for physics beyond the Standard Model (SM) in
$e^\pm$-proton collisions at a center of mass energy of 300 -- 318 GeV at HERA
are presented. Searches for excitations of fermions and for the production of
squarks in R-parity-violating Supersymmetry (SUSY) are reviewed.

0
The categories of this paper are: hep-ph
11
The categories of this paper are: hep-lat
30
The categories of this paper are: q-alg
2
The categories of this paper are: math
19
The categories of this paper are: eess
33
The categories of this paper are: plasm-ph
9
The categories of this paper are: nlin
27
The categories of this paper are: comp-gas
10
The categories of this paper are: q-bio
12
The categories of this paper are: nucl-th
20
The categories of this paper are: acc-phys
23
The categories of this paper are: solv-int
13
The categories of this paper are: quant-ph
5
The categories of this paper are: gr-qc
34
The categories of this paper are: chem-ph
4
The categories of this paper are: cond-mat