Observation of muon intensity variations by season with the MINOS near detector
Abstract
A sample of 1.53×10^9 cosmic-ray-induced single muon events has been recorded at 225 m water equivalent using the MINOS near detector. The underground muon rate is observed to be highly correlated with the effective atmospheric temperature. The coefficient αT, relating the change in the muon rate to the change in the vertical effective temperature, is determined to be 0.428±0.003(stat.)±0.059(syst.). An alternative description is provided by the weighted effective temperature, introduced to account for the differences in the temperature profile and muon flux as a function of zenith angle. Using the latter estimation of temperature, the coefficient is determined to be 0.352±0.003(stat.)±0.046(syst.).
Additional Information
© 2014 American Physical Society. Received 20 June 2014; published 22 July 2014. This work was supported by the U.S. DOE, the United Kingdom STFC, the U.S. NSF, the state of Minnesota and University of Minnesota, and Brazil's FAPESP, CNPq and CAPES. We are grateful to the personnel of Fermilab for their contributions to the experiment.Attached Files
Published - PhysRevD.90.012010.pdf
Submitted - 1406.7019v1.pdf
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Additional details
- Eprint ID
- 48760
- Resolver ID
- CaltechAUTHORS:20140821-090541485
- Department of Energy (DOE)
- Science and Technology Facilities Council (STFC)
- NSF
- State of Minnesota
- University of Minnesota
- Fundação de Amparo à Pesquisa do Estado de Sao Paulo (FAPESP)
- Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
- Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
- Created
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2014-08-21Created from EPrint's datestamp field
- Updated
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2021-11-10Created from EPrint's last_modified field