Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Radiation of a relativistic electron with non-equilibrium own Coulomb
  field   The condition and specific features of non-dipole regime of radiation is
discussed in connection with the results of recent CERN experiment NA63 on
measurement of radiation power spectrum of $149\,$GeV electrons in thin
tantalum targets. The first experimental detection of logarithmic dependence of
radiation yield from the target thickness is the conclusive evidence of the
effect of radiation suppression in a thin layer of matter, which was predicted
many years ago, and which is the direct manifestation of radiation of
relativistic electron with non-equilibrium own Coulomb field. The special
features of angular distribution of radiation and its polarization in a thin
target at non-dipole regime are proposed for a new experimental study.

32
The categories of this paper are: atom-ph
28
The categories of this paper are: alg-geom
30
The categories of this paper are: q-alg
9
The categories of this paper are: nlin
4
The categories of this paper are: cond-mat
22
The categories of this paper are: chao-dyn
34
The categories of this paper are: chem-ph
23
The categories of this paper are: solv-int
1
The categories of this paper are: cs
21
The categories of this paper are: adap-org
37
The categories of this paper are: supr-con
12
The categories of this paper are: nucl-th
2
The categories of this paper are: math
35
The categories of this paper are: mtrl-th
25
The categories of this paper are: patt-sol
7
The categories of this paper are: hep-th