Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The sensitivity of Cherenkov telescopes to dark matter and astrophysical
  anisotropies in the diffuse gamma-ray background   In this article, the capability of present (H.E.S.S., MAGIC, VERITAS) and
planned (CTA) ground-based Cherenkov telescope systems for detecting angular
anisotropies in the diffuse gamma-ray background is investigated. Following up
on a study of the impact of instrumental characteristics (effective area, field
of view, angular resolution, and background rejection efficiency), the first
part examines the influence of different observational strategies, i.e. whether
a single deep observation or a splitting over multiple shallow fields is
preferred. In the second part, the sensitivity to anisotropies generated by
self-annihilating dark matter is studied for different common dark matter
models. We find that a relative contribution of ~10% from dark matter
annihilation to the extra-galactic diffuse gamma-ray background can be detected
with planned configurations of CTA. In terms of the thermally-averaged
self-annihilation cross section, the sensitivity of CTA corresponds to values
below the thermal freeze-out expectation <sigma v> = 3 x 10-26 cm3s-1 for dark
matter particles lighter than ~200 GeV. We stress the importance of
constraining anisotropies from unresolved astrophysical sources with currently
operating instruments already, as a novel and complementary method for
investigating the properties of TeV sources.

17
The categories of this paper are: q-fin
33
The categories of this paper are: plasm-ph
18
The categories of this paper are: econ
27
The categories of this paper are: comp-gas
19
The categories of this paper are: eess
2
The categories of this paper are: math
25
The categories of this paper are: patt-sol
8
The categories of this paper are: hep-ex
10
The categories of this paper are: q-bio
24
The categories of this paper are: dg-ga
30
The categories of this paper are: q-alg
22
The categories of this paper are: chao-dyn
0
The categories of this paper are: hep-ph
9
The categories of this paper are: nlin
7
The categories of this paper are: hep-th
3
The categories of this paper are: physics