Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Soft Neutron Production in DIS: a Window to the Final State Interactions   Recently E-665 reported the first measurement of soft ($E_n \le 10 $MeV)
neutron production in deep inelastic scattering (DIS) off nuclei. We report the
first theoretical analysis of the data. We find that the observed cross section
can be quantitatively explained as due to the final state interactions (FSI) of
low energy nucleons ($E_N \sim 200-400 MeV$) produced in the elementary $\mu N$
interactions. We argue that the data indicate strong a suppression of the FSI's
of fast partons (hadrons) in DIS at high energies, and that studies of the soft
neutron production would provide a new sensitive probe of the dynamics of FSI's
in DIS both at fixed target energies and at the HERA $eA$ collider.

26
The categories of this paper are: bayes-an
25
The categories of this paper are: patt-sol
30
The categories of this paper are: q-alg
21
The categories of this paper are: adap-org
16
The categories of this paper are: stat
33
The categories of this paper are: plasm-ph
8
The categories of this paper are: hep-ex
15
The categories of this paper are: nucl-ex
2
The categories of this paper are: math
31
The categories of this paper are: ao-sci
17
The categories of this paper are: q-fin
4
The categories of this paper are: cond-mat
36
The categories of this paper are: cmp-lg
10
The categories of this paper are: q-bio
37
The categories of this paper are: supr-con
23
The categories of this paper are: solv-int