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Observation of seasonal variation of atmospheric multiple-muon events in the MINOS Near and Far Detectors

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posted on 2023-06-09, 07:51 authored by N E Devenish, Elisabeth FalkElisabeth Falk, Jeff HartnellJeff Hartnell, et al The MINOS Collaboration
We report the first observation of seasonal modulations in the rates of cosmic ray multiple-muon events at two underground sites, the MINOS Near Detector with an overburden of 225 mwe, and the MINOS Far Detector site at 2100 mwe. At the deeper site, multiple-muon events with muons separated by more than 8 m exhibit a seasonal rate that peaks during the summer, similar to that of single-muon events. In contrast and unexpectedly, the rate of multiple-muon events with muons separated by less than 5–8 m, and the rate of multiple-muon events in the smaller, shallower Near Detector, exhibit a seasonal rate modulation that peaks in the winter.

History

Publication status

  • Published

File Version

  • Published version

Journal

Physical Review D

ISSN

2470-0010

Publisher

American Physical Society

Issue

11

Volume

91

Department affiliated with

  • Physics and Astronomy Publications

Full text available

  • Yes

Peer reviewed?

  • Yes

Legacy Posted Date

2017-09-08

First Open Access (FOA) Date

2017-09-08

First Compliant Deposit (FCD) Date

2017-09-08

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