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

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 نشر من قبل Maury Goodman
 تاريخ النشر 2019
  مجال البحث فيزياء
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Using two years of data from the NOvA Near Detector at Fermilab, we report a seasonal variation of cosmic ray induced multiple-muon event rates which has an opposite phase to the seasonal variation in the atmospheric temperature. The strength of the seasonal multipl$ 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.

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