Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Longitudinal and Transverse Nuclear Shadowing   Nuclear shadowing arises from multiple scattering of the hadronic
fluctuations of the virtual photon in a nucleus. We predict different
longitudinal and transverse shadowing and an A-dependence of R which can be up
to a 50% effect. The possibility of detecting nuclear effects on R at HERA is
discussed.

8
The categories of this paper are: hep-ex
35
The categories of this paper are: mtrl-th
1
The categories of this paper are: cs
18
The categories of this paper are: econ
14
The categories of this paper are: math-ph
15
The categories of this paper are: nucl-ex
10
The categories of this paper are: q-bio
11
The categories of this paper are: hep-lat
22
The categories of this paper are: chao-dyn
33
The categories of this paper are: plasm-ph
9
The categories of this paper are: nlin
25
The categories of this paper are: patt-sol
28
The categories of this paper are: alg-geom
12
The categories of this paper are: nucl-th
34
The categories of this paper are: chem-ph
26
The categories of this paper are: bayes-an