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


Acero M. A., Adamson P., Aliaga L., Alion T., Allakhverdian V., Altakarli S., ...Daha Fazla

PHYSICAL REVIEW D, cilt.99, sa.12, 2019 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 99 Sayı: 12
  • Basım Tarihi: 2019
  • Doi Numarası: 10.1103/physrevd.99.122004
  • Dergi Adı: PHYSICAL REVIEW D
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Erciyes Üniversitesi Adresli: Hayır

Özet

Using two years of data from the NOvA Near Detector at Fermilab, we report a seasonal variation of cosmic ray induced multiple-muon (N-mu >= 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.