Neutrino oscillation effects in Soudan 2 upward-stopping muons

Neutrino oscillation effects in Soudan 2 upward-stopping muons

Upward-going stopping muons initiated by atmospheric νμ and ν̄μ interactions in the rock below the Soudan 2 detector have been isolated, together with a companion sample of neutrino-induced single muons, created within the detector, which travel downwards and exit. The downward-going sample is consi...

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Váldodahkkit: Allison, W, Alner, G, Ayres, D, Barr, G, Barrett, W, Border, P, Cobb, J, Cockerill, D, Courant, H, Demuth, D, Fields, T, Gallagher, H, Goodman, M, Kafka, T, Kasahara, S, Litchfield, P, Mann, W, Marshak, M, Miller, W, Mualem, L, Nelson, J, Napier, A, Oliver, W, Pearce, G, Peterson, E
Materiálatiipa: Journal article
Giella:English
Almmustuhtton: 2005
Govvádus
Čoahkkáigeassu:Upward-going stopping muons initiated by atmospheric νμ and ν̄μ interactions in the rock below the Soudan 2 detector have been isolated, together with a companion sample of neutrino-induced single muons, created within the detector, which travel downwards and exit. The downward-going sample is consistent with the atmospheric-neutrino flux prediction, but the upward-going sample exhibits a sizable depletion. Both are consistent with previously reported Soudan 2 neutrino-oscillation results. Inclusion of the two samples in an all-event likelihood analysis, using recent 3D-atmospheric- neutrino-flux calculations, reduces both the allowed oscillation parameter region and the probability of the no-oscillation hypothesis. © 2005 The American Physical Society.

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