Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Diffusion of cosmic rays in MHD turbulence   We review some recent findings on diffusion of cosmic rays (CRs) in
magnetohydrodynamic (MHD) turbulence obtained by adopting the
numerically-tested model of MHD turbulence, including perpendicular
superdiffusion of CRs, inefficient gyroresonant scattering by Alfv\'{e}n and
slow modes with scale-dependent turbulence anisotropy, resonance-broadened
Transit Time Damping (TTD) interaction, and mirror diffusion. As the diffusion
behavior of CRs strongly depends on the properties of MHD turbulence,
theoretical modeling of CR diffusion, its numerical testing, and interpretation
of CR-related observations require proper modeling of MHD turbulence.

19
The categories of this paper are: eess
5
The categories of this paper are: gr-qc
37
The categories of this paper are: supr-con
30
The categories of this paper are: q-alg
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The categories of this paper are: dg-ga
12
The categories of this paper are: nucl-th
4
The categories of this paper are: cond-mat
17
The categories of this paper are: q-fin
36
The categories of this paper are: cmp-lg
23
The categories of this paper are: solv-int
13
The categories of this paper are: quant-ph
31
The categories of this paper are: ao-sci
22
The categories of this paper are: chao-dyn
26
The categories of this paper are: bayes-an
21
The categories of this paper are: adap-org
8
The categories of this paper are: hep-ex