Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: QCD--Instanton Induced Final States in Deep Inelastic Scattering   We report briefly on a broad and systematic study of possible manifestations
of QCD-instantons at HERA. We concentrate on the high multiplicity final state
structure, reminiscent of an isotropically decaying ``fireball''. First results
of a Monte Carlo simulation are presented, with emphasis on the typical
event-structure and the transverse energy, muon and $K^0$ flows.

9
The categories of this paper are: nlin
35
The categories of this paper are: mtrl-th
25
The categories of this paper are: patt-sol
8
The categories of this paper are: hep-ex
36
The categories of this paper are: cmp-lg
16
The categories of this paper are: stat
17
The categories of this paper are: q-fin
23
The categories of this paper are: solv-int
3
The categories of this paper are: physics
30
The categories of this paper are: q-alg
2
The categories of this paper are: math
15
The categories of this paper are: nucl-ex
1
The categories of this paper are: cs
4
The categories of this paper are: cond-mat
37
The categories of this paper are: supr-con
33
The categories of this paper are: plasm-ph