Observation of the shadowing of cosmic rays by the moon using a deep underground detector

Collaboration
1999
14 pages
Published in:
  • Phys.Rev.D 59 (1999) 012003
e-Print:
Report number:
  • INFN-AE-98-14,
  • BUHEP-98-19,
  • IUHEP-98-107
Experiments:

Citations per year

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Abstract:
Using data collected by the MACRO experiment during the years 1989-1996, we show evidence for the shadow of the moon in the underground cosmic ray flux with a significance of 3.6 sigma. This detection of the shadowing effect is the first by an underground detector. A maximum-likelihood analysis is used to determine that the angular resolution of the apparatus is 0.9+/-0.3 degrees. These results demonstrate MACRO's capabilities as a muon telescope by confirming its absolute pointing ability and quantifying its angular resolution.
  • muon: cosmic radiation
  • cosmic radiation: flux
  • shadowing: lunar
  • statistical analysis
  • angular resolution
  • experimental results
  • MACRO