Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Simple classification of final state interaction effects in
  $^4He(e,e'p)$ scattering   The radius of interaction between the struck proton and spectator nucleons is
close to the radius of short-distance two-nucleon correlations in nuclear
matter, which makes final state interaction(FSI) an important background to
production of protons with large missing momentum. We present a simple
classification of the dominant FSI effects in $^4He(e,e'p)$ scattering and
identify parts of the phase space dominated by FSI. At large missing momentum,
FSI leads to a striking angular anisotropy of the missing momentum
distribution, which has a prominent peak in transverse kinematics and smaller,
forward-backward asymmetric, peaks in parallel kinematics.

23
The categories of this paper are: solv-int
21
The categories of this paper are: adap-org
13
The categories of this paper are: quant-ph
7
The categories of this paper are: hep-th
8
The categories of this paper are: hep-ex
9
The categories of this paper are: nlin
27
The categories of this paper are: comp-gas
0
The categories of this paper are: hep-ph
20
The categories of this paper are: acc-phys
31
The categories of this paper are: ao-sci
17
The categories of this paper are: q-fin
36
The categories of this paper are: cmp-lg
1
The categories of this paper are: cs
26
The categories of this paper are: bayes-an
4
The categories of this paper are: cond-mat
37
The categories of this paper are: supr-con