Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Angular and Abundance Distribution of High-energy Gamma Rays and
  Neutrons Simulated by GEANT4 Code for Solar Flares   In the solar flare observed on June 3, 2012, high energy gamma-rays and
neutrons were observed. The event includes a remarkable feature of a high
neutron/gamma-ratio in the secondary particles. We have examined whether this
high n/$\gamma$-ratio can be explained by simulation. As a result of
simulations using the GEANT4 program, the high n/$\gamma$-ratio may be
reproduced for the case that helium and other heavy ions were dominantly
accelerated in the flare.

26
The categories of this paper are: bayes-an
31
The categories of this paper are: ao-sci
32
The categories of this paper are: atom-ph
22
The categories of this paper are: chao-dyn
16
The categories of this paper are: stat
12
The categories of this paper are: nucl-th
27
The categories of this paper are: comp-gas
11
The categories of this paper are: hep-lat
19
The categories of this paper are: eess
1
The categories of this paper are: cs
30
The categories of this paper are: q-alg
33
The categories of this paper are: plasm-ph
15
The categories of this paper are: nucl-ex
37
The categories of this paper are: supr-con
21
The categories of this paper are: adap-org
18
The categories of this paper are: econ