Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Rapporteur Talk: Cosmic Ray Direct   This is the report on the cosmic ray direct track of the 37th International
Cosmic Ray Conference (ICRC 2021), broadly covering the contributions relating
to charged cosmic rays (CRs) of Galactic origin. The contributions highlighted
here are of both observational and theoretical nature and aim at interpreting
the local fluxes of CRs as well as studying the wider dynamical effects of CRs.
New data from space-borne experiments on CR electrons and positrons, proton and
helium as well as heavier nuclei and their isotopes are reviewed. We cover some
models of CR acceleration and their feedback on Galactic scales. Diffuse
emission in gamma-rays as far as it concerns the CR spectra in the immediate
vicinity of the solar system and CR anisotropies are covered briefly. Some
upcoming and proposed experiments are highlighted towards the end.

24
The categories of this paper are: dg-ga
10
The categories of this paper are: q-bio
14
The categories of this paper are: math-ph
19
The categories of this paper are: eess
29
The categories of this paper are: funct-an
5
The categories of this paper are: gr-qc
9
The categories of this paper are: nlin
26
The categories of this paper are: bayes-an
22
The categories of this paper are: chao-dyn
3
The categories of this paper are: physics
15
The categories of this paper are: nucl-ex
11
The categories of this paper are: hep-lat
16
The categories of this paper are: stat
1
The categories of this paper are: cs
37
The categories of this paper are: supr-con
20
The categories of this paper are: acc-phys