PT Journal
AU ANTARES Collaboration (Albert, Aea
   Barrios-Marti, J
   Coleiro, A
   Hernandez-Rey, JJ
   Illuminati, G
   Lotze, M
   Tönnis, C
   Zornoza, JD
   Zuñiga, J
TI An algorithm for the reconstruction of high-energy neutrino-induced particle showers and its application to the ANTARES neutrino telescope
SO European Physical Journal C
JI Eur. Phys. J. C
PY 2017
BP 419 - 11pp
VL 77
IS 6
DI 10.1140/epjc/s10052-017-4979-2
LA English
AB A novel algorithm to reconstruct neutrino-induced particle showers within the ANTARES neutrino telescope is presented. The method achieves a median angular resolution of 6. for shower energies below 100TeV. Applying this algorithm to 6 years of data taken with theANTARES detector, 8 events with reconstructed shower energies above 10TeV are observed. This is consistent with the expectation of about 5 events from atmospheric backgrounds, but also compatible with diffuse astrophysical flux measurements by the IceCube collaboration, from which 2-4 additional events are expected. A 90% C.L. upper limit on the diffuse astrophysical neutrino flux with a value per neutrino flavour of E-2.Phi(90%) = 4.9 . 10(-8) GeV.cm(-2).s(-1).sr(-1) is set, applicable to the energy range from 23TeV to 7.8PeV, assuming an unbroken E-2 spectrum and neutrino flavour equipartition at Earth.
ER