Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A comprehensive study of shower to shower fluctuations   By means of Monte Carlo simulations of extensive air showers (EAS), we have
performed a comprehensive study of the shower to shower fluctuations affecting
the longitudinal and lateral development of EAS. We split the fluctuations into
physical fluctuations and those induced by the thinning procedure customarily
applied to simulate showers at EeV energies and above. We study the influence
of thinning on the calculation of the shower to shower fluctuations in the
simulations. For thinning levels larger than 10^(-5) - 10^(-6), the
determination of the shower to shower fluctuations is hampered by the
artificial fluctuations induced by the thinning procedure. However, we show
that shower to shower fluctuations can still be approximately estimated, and we
provide expressions to calculate them. The influence of fluctuations of the
depth of first interaction on the determination of shower to shower
fluctuations is also addressed.

36
The categories of this paper are: cmp-lg
2
The categories of this paper are: math
4
The categories of this paper are: cond-mat
29
The categories of this paper are: funct-an
20
The categories of this paper are: acc-phys
8
The categories of this paper are: hep-ex
25
The categories of this paper are: patt-sol
19
The categories of this paper are: eess
16
The categories of this paper are: stat
37
The categories of this paper are: supr-con
3
The categories of this paper are: physics
35
The categories of this paper are: mtrl-th
32
The categories of this paper are: atom-ph
24
The categories of this paper are: dg-ga
18
The categories of this paper are: econ
31
The categories of this paper are: ao-sci