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지하실험 연구단
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Measurement of the cosmic muon annual and diurnal flux variation with the COSINE-100 detector

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Title
Measurement of the cosmic muon annual and diurnal flux variation with the COSINE-100 detector
Author(s)
Hafizh, Prihtiadi; Adhikari, Govinda; De Souza, E. Barbosa; Carlin, N.; Choi, J.J.; Choi, S.; Djamal, M.; Ezeribe, A.C.; Franca, L.E.; Ha, C.; Hahn, I.S.; Jeon, Eun Ju; Jo, J.H.; Kang, Woon Gu; Kauer, M.; Hyoun Gyu, Kim; Kim, H.J.; Kim, Kyungwon; Kim, S.K.; Kim, Yeongduk; Kim, Yong Hamb; Ko, Young Ju; Lee, Eun Kyoung; Lee, Hyun Su; Lee,, Jaison; Lee, J.Y.; Lee, Moo Hyun; Seo Hyun Lee; Douglas, Leonard; Manzato, B.B.; Maruyama, R.H.; Neal, R.J.; Olsen, S.L.; Park, B.J.; Park, H.K.; Park, H.S.; Kang Soon, Park; Pitta, R.L.C.; Ra, S.J.; Rott, C.; Shin, Keonah; Scraff, A.; Spooner, N.J.C.; Thompson, W.G.; Yang, L.; Yu, G.H.
Subject
VETO
Publication Date
2021-02
Journal
JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS, v.2021, no.2, pp.1 - 12
Publisher
IOP PUBLISHING LTD
Abstract
We report measurements of annual and diurnal modulations of the cosmic-ray muon rate in the Yangyang underground laboratory (Y2L) using 952 days of COSINE-100 data acquired between September 2016 and July 2019. A correlation of the muon rate with the atmospheric temperature is observed and its amplitude on the muon rate is determined. The effective atmospheric temperature and muon rate variations are positively correlated with a measured effective temperature coefficient of alpha(T) = 0.82 +/- 0.10. This result is consistent with a model of meson production in the atmosphere. We also searched for a diurnal modulation in the underground muon rate by comparing one-hour intervals. No significant diurnal modulation of the muon rate was observed.
URI
https://pr.ibs.re.kr/handle/8788114/9250
DOI
10.1088/1475-7516/2021/02/013
ISSN
1475-7516
Appears in Collections:
Center for Underground Physics(지하실험 연구단) > 1. Journal Papers (저널논문)
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