Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Femtosecond Transversal Deflection of Electron Beams with the Help of
  Laser Beams and Its Possible Applications   It is shown that the interaction of an electron beam with polarized
electromagnetic wave of laser photons propagating in the same direction in a
short interaction region results in significant transversal deflection of the
electrons which can be used for production of femtosecond electron and
synchrotron radiation beams, for chopping the electron beams and construction
of laser oscilloscopes measuring femtosecond processes.

14
The categories of this paper are: math-ph
9
The categories of this paper are: nlin
34
The categories of this paper are: chem-ph
35
The categories of this paper are: mtrl-th
12
The categories of this paper are: nucl-th
11
The categories of this paper are: hep-lat
16
The categories of this paper are: stat
32
The categories of this paper are: atom-ph
36
The categories of this paper are: cmp-lg
2
The categories of this paper are: math
33
The categories of this paper are: plasm-ph
28
The categories of this paper are: alg-geom
1
The categories of this paper are: cs
5
The categories of this paper are: gr-qc
27
The categories of this paper are: comp-gas
7
The categories of this paper are: hep-th