Observation of seasonal variation of atmospheric multiple-muon events in the NOvA Near Detector

NOvA Collaboration

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1 Scopus citations

Abstract

Using two years of data from the NOvA Near Detector at Fermilab, we report a seasonal variation of cosmic ray induced multiple-muon (Nμ≥2) event rates which has an opposite phase to the seasonal variation in the atmospheric temperature. The strength of the seasonal multiple-muon variation is shown to increase as a function of the muon multiplicity. However, no significant dependence of the strength of the seasonal variation of the multiple-muon variation is seen as a function of the muon zenith angle, or the spatial or angular separation between the correlated muons.

Original languageEnglish (US)
Article number122004
JournalPhysical Review D
Volume99
Issue number12
DOIs
StatePublished - Jun 28 2019

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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