Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On the new HERMES data for the electroproduction on nuclei   We analyze recent data on the electroproduction of hadrons on nuclei using
the Lund model for electroproduction on nucleons and a simple geometrical model
for the absorption effects. We show that the model seems to overestimate the
A-dependence of the absorption effects, although it described the earlier data
of the same HERMES experiment reasonably well. We trace the origin of this
discrepancy to the surprising difference between the data for nitrogen and
neon.

3
The categories of this paper are: physics
6
The categories of this paper are: astro-ph
21
The categories of this paper are: adap-org
31
The categories of this paper are: ao-sci
27
The categories of this paper are: comp-gas
35
The categories of this paper are: mtrl-th
23
The categories of this paper are: solv-int
36
The categories of this paper are: cmp-lg
34
The categories of this paper are: chem-ph
16
The categories of this paper are: stat
20
The categories of this paper are: acc-phys
4
The categories of this paper are: cond-mat
17
The categories of this paper are: q-fin
37
The categories of this paper are: supr-con
24
The categories of this paper are: dg-ga
2
The categories of this paper are: math