Observation in the MINOS far detector of the shadowing of cosmic rays by the sun and moon
Journal Article
·
· Submitted to Astropart. Phys.
The shadowing of cosmic ray primaries by the the moon and sun was observed by the MINOS far detector at a depth of 2070 mwe using 83.54 million cosmic ray muons accumulated over 1857.91 live-days. The shadow of the moon was detected at the 5.6 {sigma} level and the shadow of the sun at the 3.8 {sigma} level using a log-likelihood search in celestial coordinates. The moon shadow was used to quantify the absolute astrophysical pointing of the detector to be 0.17 {+-} 0.12{sup o}. Hints of Interplanetary Magnetic Field effects were observed in both the sun and moon shadow.
- Research Organization:
- Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC02-07CH11359
- OSTI ID:
- 985424
- Report Number(s):
- FERMILAB-PUB-10-297-E; arXiv eprint number arXiv:1008.1719; TRN: US1006136
- Journal Information:
- Submitted to Astropart. Phys., Journal Name: Submitted to Astropart. Phys.; ISSN 0927-6505
- Country of Publication:
- United States
- Language:
- English
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