Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Dark matter search in the inner galactic center halo with H.E.S.S   The presence of dark matter in the universe is nowadays supported by a
substantial set of astronomical and cosmological observations. A large amount
of dark matter is expected in the Galactic Center (GC) region. Thanks also to
its proximity, it is one of the best targets to look for dark matter particle
self-annihilation into very high energy gamma-rays. We perform a search for
annihilating dark matter in the central 300 parsecs around the GC with the
H.E.S.S. array of ground-based Cherenkov telescopes. Using the full H.E.S.S.- I
dataset (2004-2014) of GC observations, new constraints are derived on the
velocity-weighted annihilation cross section $\langle \sigma v \rangle$ with a
2D likelihood method using spectral and spatial morphologies of the DM signal
compared to background. These constraints are the strongest obtained so far in
the TeV mass range and improve the previous constraints by a factor of 5.
Considering an Einasto profile, the constraints reach $\langle \sigma v
\rangle$ values of $6\times 10^{-26}$cm$^{3}$s$^{-1}$ for a DM particle mass of
1.5 TeV annihilation into W$^+$W$^-$ pairs. In the $\tau^+\tau^-$ channel, the
constraints probe the natural scale for thermal relic cross section for DM
particles of masses between 400 GeV and 2 TeV.

27
The categories of this paper are: comp-gas
13
The categories of this paper are: quant-ph
10
The categories of this paper are: q-bio
35
The categories of this paper are: mtrl-th
15
The categories of this paper are: nucl-ex
23
The categories of this paper are: solv-int
16
The categories of this paper are: stat
7
The categories of this paper are: hep-th
18
The categories of this paper are: econ
2
The categories of this paper are: math
19
The categories of this paper are: eess
8
The categories of this paper are: hep-ex
4
The categories of this paper are: cond-mat
31
The categories of this paper are: ao-sci
17
The categories of this paper are: q-fin
33
The categories of this paper are: plasm-ph