Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Heavy decaying dark matter and IceCube high energy neutrinos   We examine the hypothesis of decaying heavy dark matter (HDM) in the context
of the IceCube highest energy neutrino events and recent limits on the diffuse
flux of high-energy photons. We consider dark matter (DM) particles $X$ of mass
$10^{6}\leq M_X\leq~10^{16}$ GeV decaying on tree level into $X \rightarrow \nu
\bar{\nu}$, $X \rightarrow e^+e^-$ and $X \rightarrow q \bar{q}$. The full
simulation of hadronic and electroweak decay cascades and the subsequent
propagation of the decay products through the interstellar medium allows us to
determine the permitted values of $M_X$. We show that for leptonic decay
channels it is possible to explain the IceCube highest energy neutrino signal
without overproducing high-energy photons for $M_X~\lesssim~5.5 \cdot 10^{7}$
GeV and $1.5 \cdot 10^{8}~\lesssim~M_X~\lesssim~1.5 \cdot 10^{9}$ GeV, while
hadronic decays contradict the gamma-ray limits for almost the whole range of
$M_X$ values considered. The leptonic hypothesis can be probed by operating and
planned gamma-ray observatories. For instance, the currently upgrading Carpet
experiment will be capable to test a significant part of the remaining
parameter window within one year of observation.

33
The categories of this paper are: plasm-ph
4
The categories of this paper are: cond-mat
5
The categories of this paper are: gr-qc
17
The categories of this paper are: q-fin
30
The categories of this paper are: q-alg
28
The categories of this paper are: alg-geom
12
The categories of this paper are: nucl-th
1
The categories of this paper are: cs
29
The categories of this paper are: funct-an
13
The categories of this paper are: quant-ph
9
The categories of this paper are: nlin
2
The categories of this paper are: math
21
The categories of this paper are: adap-org
3
The categories of this paper are: physics
25
The categories of this paper are: patt-sol
32
The categories of this paper are: atom-ph