Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Boosted Dark Matter and its implications for the features in IceCube
  HESE data   We study the implications of the premise that any new, relativistic, highly
energetic neutral particle that interacts with quarks and gluons would create
cascade-like events in the IceCube (IC) detector. Such events would be
observationally indistinguishable from neutral current deep-inelastic
scattering events due to neutrinos. Consequently, one reason for deviations,
breaks or excesses in the expected astrophysical power-law neutrino spectrum
could be the flux of such a particle. Motivated by features in the recent
1347-day IceCube high energy starting event data (HESE), we focus on particular
boosted dark matter ($\chi$) related realizations of this premise. Here, $\chi$
is assumed to be much lighter than, and the result of, the slow decay of a
massive scalar ($\phi$) which constitutes a major fraction of the Universe's
dark matter. We show that this hypothesis, coupled with a standard power-law
astrophysical neutrino flux is capable of providing very good fits to the
present data, along with a possible explanation of other features in the HESE
sample. These features include a) the paucity of events beyond $\sim 2$ PeV b)
a spectral feature resembling a dip or a spectral change in the 400 TeV--1 PeV
region and c) an excess in the $50-100$ TeV region. We consider two different
boosted DM scenarios, and determine the allowed mass ranges and couplings for
four different types of mediators (scalar, pseudoscalar, vector and
axial-vector) which could connect the standard and dark sectors. We consider
constraints from gamma-ray observations and collider searches. We find that the
gamma-ray observations provide the most restrictive constraints, disfavouring
the $1\sigma$ allowed parameter space from IC fits, while still being
consistent with the $3\sigma$ allowed region. We also test our proposal and its
implications against IC's recent six-year through-going muon track data.

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The categories of this paper are: cs
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The categories of this paper are: quant-ph
35
The categories of this paper are: mtrl-th
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The categories of this paper are: acc-phys
37
The categories of this paper are: supr-con
32
The categories of this paper are: atom-ph
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The categories of this paper are: nlin
34
The categories of this paper are: chem-ph
19
The categories of this paper are: eess
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The categories of this paper are: cond-mat
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The categories of this paper are: physics
17
The categories of this paper are: q-fin
36
The categories of this paper are: cmp-lg
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The categories of this paper are: alg-geom
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The categories of this paper are: dg-ga
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The categories of this paper are: math