Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: New Indications of Changing the Regime of Multiple Production at
  Superhigh Energies   The effect of alignment of secondary particles (products of hadron
interactions at superhigh energies $E^\mathrm{{in}}\geq5\cdot10^{6}$ GeV) as a
"fan", which has been observed in cosmic rays, is analysed. It is shown that
its main specific features are well described within the model that we proposed
twenty years ago to explain sharp anomalies in the process of multiple
production, which are observed in the same energy range. This model assumes
that quarks have internal massive degrees of freedom. Some consequences of the
used approach are discussed, which may be important for the multiple process in
the above-mentioned region.

28
The categories of this paper are: alg-geom
26
The categories of this paper are: bayes-an
23
The categories of this paper are: solv-int
14
The categories of this paper are: math-ph
29
The categories of this paper are: funct-an
18
The categories of this paper are: econ
22
The categories of this paper are: chao-dyn
13
The categories of this paper are: quant-ph
11
The categories of this paper are: hep-lat
30
The categories of this paper are: q-alg
27
The categories of this paper are: comp-gas
15
The categories of this paper are: nucl-ex
8
The categories of this paper are: hep-ex
2
The categories of this paper are: math
17
The categories of this paper are: q-fin
32
The categories of this paper are: atom-ph