Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Neutrino scattering off a black hole surrounded by a magnetized
  accretion disk   We study the neutrino scattering off a rotating black hole with a realistic
accretion disk permeated by an intrinsic magnetic field. Neutrino trajectories
in curved spacetime as well as the particle spin evolution in dense matter of
an accretion disk and in the magnetic field are accounted for exactly. We
obtain the fluxes of outgoing ultrarelativistic neutrinos taking into account
the change of the neutrino polarization owing to spin oscillations. Using the
conservative value of the neutrino magnetic moment and realistic radial
distributions of the matter density and the magnetic field strength, we get
that these fluxes are reduced by several percent compared to the case when no
spin oscillations are accounted for. In some situations, there are spikes in
the neutrino fluxes because of the neutrino interaction with the rotating
plasma of an accretion disk. Taking into account the uncertainties in the
astrophysical neutrino fluxes, the predicted effects turn out to be quite small
to be observed with the current neutrino telescopes.

31
The categories of this paper are: ao-sci
30
The categories of this paper are: q-alg
22
The categories of this paper are: chao-dyn
7
The categories of this paper are: hep-th
14
The categories of this paper are: math-ph
24
The categories of this paper are: dg-ga
26
The categories of this paper are: bayes-an
3
The categories of this paper are: physics
11
The categories of this paper are: hep-lat
33
The categories of this paper are: plasm-ph
28
The categories of this paper are: alg-geom
8
The categories of this paper are: hep-ex
10
The categories of this paper are: q-bio
37
The categories of this paper are: supr-con
32
The categories of this paper are: atom-ph
35
The categories of this paper are: mtrl-th