Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The Rise in F_2^p at HERA   We show that the rise in $F_2^p$ at small $x$ and large $Q^2$ seen at HERA is
indeed the non-Regge double asymptotic scaling behaviour expected from the
perturbative emission of strongly ordered hard gluons. An alternative
explanation, in which there is no strong ordering, and a new hard Reggeon is
generated, is also tried but found wanting: its theoretical short-comings are
betrayed by its failure to properly account for the HERA data.

31
The categories of this paper are: ao-sci
1
The categories of this paper are: cs
17
The categories of this paper are: q-fin
2
The categories of this paper are: math
27
The categories of this paper are: comp-gas
10
The categories of this paper are: q-bio
28
The categories of this paper are: alg-geom
34
The categories of this paper are: chem-ph
13
The categories of this paper are: quant-ph
3
The categories of this paper are: physics
35
The categories of this paper are: mtrl-th
23
The categories of this paper are: solv-int
12
The categories of this paper are: nucl-th
8
The categories of this paper are: hep-ex
4
The categories of this paper are: cond-mat
6
The categories of this paper are: astro-ph