Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Study of Deep Inelastic ep-Scattering at High-Q^2 with ZEUS at HERA   Measurements of differential cross sections for deep inelastic ep
neutral-current (NC) and charged-current (CC) reactions are presented using
data taken during the 1994-97 e^+p and the 1998-99 e^-p running periods. The
structure function xF_3 has been extracted combining NC e^-p and e^+p data
sets. Both the measured cross sections and xF_3 are well described by the
standard model predictions using standard PDF's.

15
The categories of this paper are: nucl-ex
4
The categories of this paper are: cond-mat
28
The categories of this paper are: alg-geom
16
The categories of this paper are: stat
25
The categories of this paper are: patt-sol
17
The categories of this paper are: q-fin
12
The categories of this paper are: nucl-th
3
The categories of this paper are: physics
1
The categories of this paper are: cs
37
The categories of this paper are: supr-con
36
The categories of this paper are: cmp-lg
34
The categories of this paper are: chem-ph
6
The categories of this paper are: astro-ph
29
The categories of this paper are: funct-an
24
The categories of this paper are: dg-ga
21
The categories of this paper are: adap-org