PhysRevD.83.032011.pdf (351.99 kB)
Measurement of the underground atmospheric muon charge ratio using the MINOS Near Detector
journal contribution
posted on 2023-06-08, 07:04 authored by P Adamson, C Andreopoulos, R Armstrong, D.J Auty, D S Ayres, C Backhouse, G Barr, M Bishai, A Blake, G.J Block, N E Devenish, Elisabeth FalkElisabeth Falk, Jeff HartnellJeff Hartnell, G Lefeuvre, et alThe magnetized MINOS Near Detector, at a depth of 225 meters of water equivalent (mwe), is used to measure the atmospheric muon charge ratio. The ratio of observed positive to negative atmospheric muon rates, using 301 days of data, is measured to be 1.266+/-0.001(stat.)+0.015/-0.014(syst.). This measurement is consistent with previous results from other shallow underground detectors, and is 0.108+/-0.019(stat. + syst.) lower than the measurement at the functionally identical MINOS Far Detector at a depth of 2070 mwe. This increase in charge ratio as a function of depth is consistent with an increase in the fraction of muons arising from kaon decay for increasing muon surface energies.
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- Published
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- Published version
Journal
Physical Review DISSN
1550-7998Publisher
American Physical SocietyExternal DOI
Issue
3Volume
D83Page range
032011Pages
11.0Department affiliated with
- Physics and Astronomy Publications
Full text available
- Yes
Peer reviewed?
- Yes
Legacy Posted Date
2012-02-06First Open Access (FOA) Date
2016-03-22First Compliant Deposit (FCD) Date
2016-11-10Usage metrics
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