Seasonal Variation of Multiple-Muon Events in MINOS and NOvA
A. Habig, M. Goodman, P. Schreiner, S. Tognini, R. Gomes, for the MINOS and NOvA Collaborations
Seasonal Variations of Multiple Muons at the MINOS Near Detector (ND) and Far Detector (FD) are reported. The features of the data differ from the single-muon seasonal variations seen by both detectors and many other underground experiments. A satisfactory explanation for this result has not been put forward. A preliminary analysis of multiple-muon seasonal variation in the NOvA ND, located near the position of the MINOS ND, supports the MINOS observations.