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Research output: Contribution to Journal/Magazine › Journal article › peer-review
Observation of seasonal variation of atmospheric multiple-muon events in the MINOS near and far detectors. / MINOS Collaboration.
In: Physical Review D, Vol. 91, 112006, 09.06.2015.Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Observation of seasonal variation of atmospheric multiple-muon events in the MINOS near and far detectors
AU - Adamson, P.
AU - Anghel, I.
AU - Aurisano, A.
AU - Barr, G.
AU - Bishai, M.
AU - Blake, A.
AU - Bock, G. J.
AU - Bogert, D.
AU - Cao, S. V.
AU - Castromonte, C. M.
AU - Childress, S.
AU - Coelho, J. A. B.
AU - Corwin, L.
AU - Cronin-Hennessy, . D.
AU - Jong, J. K. de
AU - Devan, A. V.
AU - Devenish, N. E.
AU - Diwan, M. V.
AU - Escobar, C. O.
AU - Evans, J. J.
AU - Falk, E.
AU - Feldman, G. J.
AU - Frohne, M. V.
AU - Gallagher, H. R.
AU - Gomes, R. A.
AU - Goodman, M. C.
AU - Gouffon, P.
AU - Graf, N.
AU - Gran, R.
AU - Grzelak, K.
AU - Habig, A.
AU - Hahn, S. R.
AU - Hartnell, J.
AU - Hatcher, R.
AU - Holin, A.
AU - Huang, J.
AU - Hylen, J.
AU - Irwin, G. M.
AU - Isvan, Z.
AU - James, C.
AU - Jensen, D.
AU - Kafka, T.
AU - Kasahara, S. M. S.
AU - Koizumi, G.
AU - Kordosky, M.
AU - Kreymer, A.
AU - Lang, K.
AU - Ling, J.
AU - Litchfield, P. J.
AU - Nowak, J. A.
AU - MINOS Collaboration
PY - 2015/6/9
Y1 - 2015/6/9
N2 - 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.
AB - 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.
KW - hep-ex
U2 - 10.1103/PhysRevD.91.112006
DO - 10.1103/PhysRevD.91.112006
M3 - Journal article
VL - 91
JO - Physical Review D
JF - Physical Review D
SN - 1550-7998
M1 - 112006
ER -