Abstract
The MACRO underground detector at Gran Sasso has recorded about 30 million muon events in the period 1989-1995. We have analyzed these data to look for time variations and to study the pointing capabilities of the apparatus in the search for astrophysical point sources. We have observed a 3% seasonal variation of the high energy muon rate, due to atmospheric temperature variations, in agreement with theoretical predictions. We report also the detection of the moon shadowing effect with a statistical significance of 3.7 σ. The results obtained straighten the possibility that a "muon astronomy" using underground experiments is possible.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 180-184 |
| Number of pages | 5 |
| Journal | Nuclear Physics B - Proceedings Supplements |
| Volume | 61 |
| Issue number | 3 SUPPL. |
| DOIs | |
| State | Published - Feb 1998 |
All Science Journal Classification (ASJC) codes
- Atomic and Molecular Physics, and Optics
- Nuclear and High Energy Physics