PT Journal
AU ANTARES Collaboration (Aguilar, JAea
   Bigongiari, C
   Emanuele, U
   Gomez-Gonzalez, JP
   Hernandez-Rey, JJ
   Mangano, S
   Salesa, F
   Toscano, S
   Yepes, H
   Zornoza, JD
   Zuñiga, J
TI Measurement of the atmospheric muon flux with a 4 GeV threshold in the ANTARES neutrino telescope
SO Astroparticle Physics
JI Astropart Phys.
PY 2010
BP 86
EP 90
VL 33
IS 2
DI 10.1016/j.astropartphys.2009.12.002
LA English
DE Atmospheric muons; Depth intensity relation; Potassium-40
AB A new method for the measurement of the muon flux in the deep-sea ANTARES neutrino telescope and its dependence on the depth is presented. The method is based oil the observation of coincidence signals in adjacent storeys of the detector. This yields an energy threshold of about 4 GeV. The main sources of optical background are the decay of K-40 and the bioluminescence in the sea water. The K-40 background is used to calibrate the efficiency of the photo-multiplier tubes.
ER