Volume 301 - 35th International Cosmic Ray Conference (ICRC2017) - Session Neutrino. NU-astrophysical neutrinos
Using all-flavor and all-sky event selections by IceCube to search for neutrino emission from the Galactic plane
K. Krings* on behalf of the IceCube Collaboration
*corresponding author
Full text: pdf
Pre-published on: August 16, 2017
Published on: August 03, 2018
Abstract
The IceCube Neutrino Telescope has observed a diffuse all-flavor
astrophysical neutrino flux above $30\,\mathrm{TeV}$. The neutrino
flux is currently compatible with an isotropic distribution; no astronomical
counterparts have been identified yet. Here, we propose a binned
forward-folding likelihood fit of the available neutrino data to search for
integrated emission in the Galactic plane. We use two independent neutrino
samples, one consisting of all-sky all-flavor events with deposited energies
larger than $1\,\mathrm{TeV}$ whose interaction vertex is contained in
the detector's fiducial volume, the other of up-going muon neutrinos; both
samples are integrated over a time period of six years. By performing a joint
analysis of through-going and starting events, degeneracies between Galactic
and extra-galactic neutrinos can be resolved and uncertainties in the
atmospheric neutrino fluxes are better controlled. We present preliminary
sensitivities for different models of neutrino emission from the Galactic
plane.
DOI: https://doi.org/10.22323/1.301.0995
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