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24 April 2024 |
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Secondary Muon Asymmetries at Sea Levell with Low Systematics | | J. Poirier
; C. D’Andrea
; M. Dunford
; | | Date: |
25 Sep 2001 | | Subject: | astro-ph | | Abstract: | Project GRAND has the capability of measuring the angle and identity of single tracks of secondary muons at ground level. The array is comprised of 64 stations each containing eight proportional wire planes with a 50 mm steel absorber plate placed above the bottom two planes in each station. The added steel absorber plate allows muon tracks to be separated from the less massive electrons. Over 100 billion identified muon angles have been measured. With the high statistics available, it is possible to obtain muon angular asymmetries with low systematics by subtracting west from east (and separately, south from north) angles; the subtraction eliminates most of the systematic errors while still retaining adequately small statistical errors on the differences. A preliminary analysis is performed as a function of solar time to obtain the effects on the muon rate due to effects of the sun. | | Source: | arXiv, astro-ph/0109462 | | Services: | Forum | Review | PDF | Favorites | |
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