Observation in the MINOS far detector of the shadowing of cosmic rays by the sun and moon

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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.

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23 pages

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Adamson, P.; /Fermilab; Andreopoulos, C.; U., /Rutherford /Athens; Ayres, D.S.; /Argonne et al. August 1, 2010.

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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.

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23 pages

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  • Journal Name: Submitted to Astropart. Phys.

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  • Report No.: FERMILAB-PUB-10-297-E
  • Grant Number: AC02-07CH11359
  • DOI: 10.1016/j.astropartphys.2010.10.010 | External Link
  • Office of Scientific & Technical Information Report Number: 985424
  • Archival Resource Key: ark:/67531/metadc1012117

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  • August 1, 2010

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  • Oct. 14, 2017, 8:36 a.m.

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  • Oct. 24, 2017, 9:55 p.m.

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Adamson, P.; /Fermilab; Andreopoulos, C.; U., /Rutherford /Athens; Ayres, D.S.; /Argonne et al. Observation in the MINOS far detector of the shadowing of cosmic rays by the sun and moon, article, August 1, 2010; Batavia, Illinois. (digital.library.unt.edu/ark:/67531/metadc1012117/: accessed December 18, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.