Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Intrinsic charm in the nucleon and forward production of charm: a new
  constrain from IceCube Neutrino Observatory   The predictions for the atmospheric neutrino flux at high energies strongly
depend on the contribution of prompt neutrinos, which are determined by the
production of charmed meson in the atmosphere at very forward rapidities. Here
we estimate the related cross sections taking into account the presence of an
intrinsic charm (IC) component in the proton wave function. The impact on the
predictions for the prompt neutrino flux is investigated assuming different
values for the probability to find the IC in the nucleon.

22
The categories of this paper are: chao-dyn
24
The categories of this paper are: dg-ga
37
The categories of this paper are: supr-con
13
The categories of this paper are: quant-ph
16
The categories of this paper are: stat
4
The categories of this paper are: cond-mat
33
The categories of this paper are: plasm-ph
31
The categories of this paper are: ao-sci
29
The categories of this paper are: funct-an
34
The categories of this paper are: chem-ph
27
The categories of this paper are: comp-gas
17
The categories of this paper are: q-fin
25
The categories of this paper are: patt-sol
26
The categories of this paper are: bayes-an
3
The categories of this paper are: physics
14
The categories of this paper are: math-ph