Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Towards a fast and precise forward model for air shower radio simulation   The radio detection method for cosmic rays relies on coherent emission from
electrons and positrons which is beamed in a narrow cone along the shower axis.
Currently the only mod- els to reproduce this emission with sufficient accuracy
are Monte Carlo based simulations of the particle and radio emission physics,
which require large investments of computation time. The work presented here
focuses on condensing the simulation results into a semi-analytical model. This
relies on building a framework based on theoretical predictions of radio
emission, but instead of calculating the radio signal directly these models are
used to map template simu- lations to the specifications of a given radio
event. Our current approach slices the radio signal based on atmospheric depth
of origin and weights these slices based on a shower parameter such as electron
number or an effective dipole moment. One significant gain over the existing
Monte Carlo codes lies in the fact this makes the depth of the shower maximum a
direct input to the simulation where currently one has to pre-select showers
based on their random number seed. Such a model has great potential for heavily
simulation-based analysis methods, for example the LOFAR air shower
reconstruction. These techniques are severely limited by the available
computation time but have the lowest errors in real measurement applications.

34
The categories of this paper are: chem-ph
25
The categories of this paper are: patt-sol
14
The categories of this paper are: math-ph
22
The categories of this paper are: chao-dyn
28
The categories of this paper are: alg-geom
1
The categories of this paper are: cs
36
The categories of this paper are: cmp-lg
5
The categories of this paper are: gr-qc
9
The categories of this paper are: nlin
0
The categories of this paper are: hep-ph
2
The categories of this paper are: math
16
The categories of this paper are: stat
29
The categories of this paper are: funct-an
3
The categories of this paper are: physics
15
The categories of this paper are: nucl-ex
31
The categories of this paper are: ao-sci