Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Searching for signals of magnetic lensing in ultra-high energy cosmic
  rays   Ultra-high energy cosmic rays are mostly charged particles and they are
therefore deflected by magnetic fields on their path from their sources to
Earth. An interesting phenomenon arising from these deflections is the
appearance of multiple images of a source, i.e. cosmic rays with the same
energy coming from the same source that can arrive to the Earth from different
directions. In this work we present a technique to identify secondary images,
produced by the regular component of the galactic magnetic field, benefiting
from the fact that near caustics the flux is significantly magnified.

37
The categories of this paper are: supr-con
17
The categories of this paper are: q-fin
31
The categories of this paper are: ao-sci
9
The categories of this paper are: nlin
26
The categories of this paper are: bayes-an
34
The categories of this paper are: chem-ph
13
The categories of this paper are: quant-ph
29
The categories of this paper are: funct-an
27
The categories of this paper are: comp-gas
35
The categories of this paper are: mtrl-th
10
The categories of this paper are: q-bio
14
The categories of this paper are: math-ph
23
The categories of this paper are: solv-int
21
The categories of this paper are: adap-org
0
The categories of this paper are: hep-ph
20
The categories of this paper are: acc-phys