PT Journal
AU ANTARES Collaboration (Aguilar, JAea
   Bigongiari, C
   Dornic, D
   Emanuele, U
   Gomez-Gonzalez, JP
   Hernandez-Rey, JJ
   Mangano, S
   Salesa, F
   Toscano, S
   Yepes, H
   Zornoza, JD
   Zuñiga, J
TI Search for a diffuse flux of high-energy nu(mu) with the ANTARES neutrino telescope
SO Physics Letters B
JI Phys. Lett. B
PY 2011
BP 16
EP 22
VL 696
IS 1-2
DI 10.1016/j.physletb.2010.11.070
LA English
DE Neutrino telescope; Diffuse muon neutrino flux; ANTARES
AB A search for a diffuse flux of astrophysical muon neutrinos, using data collected by the ANTARES neutrino telescope is presented. A (0.83 x 2 pi) sr sky was monitored for a total of 334 days of equivalent live time. The searched signal corresponds to an excess of events, produced by astrophysical sources, over the expected atmospheric neutrino background. The observed number of events is found compatible with the background expectation. Assuming an E-2 flux spectrum, a 90% c.l. upper limit on the diffuse nu(mu) flux of E-2 Phi(90%) = 5.3 x 10(-8) GeV cm(-2) s(-1) sr(-1) in the energy range 20 TeV-2.5 PeV is obtained. Other signal models with different energy spectra are also tested and some rejected.
ER