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Coincident observation of air [hacek C]erenkov light by a surface array and muon bundles by a deep underground detector
Ist Teil von
Physical review. D, Particles and fields, 1994-09, Vol.50:5
Ort / Verlag
United States
Erscheinungsjahr
1994
Quelle
PROLA - Physical Review Online Archive
Beschreibungen/Notizen
We report on the simultaneous observation of atmospheric [hacek C]erenkov light by a prototype five telescope array, GRACE, (Gran Sasso Air [hacek C]erenkov Experiment) with deep underground muons in the MACRO (Monopole Astrophysics and Cosmic Ray Observatory). The telescope array was deployed at Campo Imperatore above the Gran Sasso Laboratory for a run completed in the fall of 1992. The total live time for the combined surface-underground operation was [similar to]100 h during which more than 300 events were seen in coincidence. The efficacy of this technique to monitor the electromagnetic and penetrating muon components of a cosmic-ray-induced cascade is discussed.