Measurement of the atmospheric neutrino flavour composition in Soudan 2

W. W.M. Allison, G. J. Alner, D. S. Ayres, W. L. Barrett, C. Bode, P. M. Border, C. B. Brooks, J. H. Cobb, D. J.A. Cockerill, R. J. Cotton, H. Courant, D. M. DeMuth, T. H. Fields, H. R. Gallagher, C. Garcia-Garcia, M. C. Goodman, R. N. Gray, K. Johns, T. Kafka, S. M.S. KasaharaW. Leeson, P. J. Litchfield, N. P. Longley, M. J. Lowe, W. A. Mann, M. L. Marshak, E. N. May, R. H. Milburn, W. H. Miller, L. Mualem, A. Napier, W. Oliver, G. F. Pearce, D. H. Perkins, E. A. Peterson, D. A. Petyt, L. E. Price, D. M. Roback, K. Ruddick, D. J. Schmid, J. Schneps, M. H. Schub, R. V. Seidlein, M. A. Shupe, A. Stassinakis, N. Sundaralingam, J. Thomas, J. L. Thron, V. Vassiliev, G. Villaume, S. P. Wakely, D. Wall, S. J. Werkema, N. West, U. M. Wielgosz

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Abstract

The atmospheric neutrino flavour ratio measured using a 1.52 kton-year exposure of Soudan 2 is found to be 0.72 ± 0.19+0.05-0.07 relative to the expected value from a Monte Carlo calculation. The possible background of interactions of neutrons and photons produced in muon interactions in the rock surrounding the detector has been investigated and is shown not to produce low values of the ratio.

Original languageEnglish (US)
Pages (from-to)491-500
Number of pages10
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume391
Issue number3-4
DOIs
StatePublished - Jan 16 1997

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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    Allison, W. W. M., Alner, G. J., Ayres, D. S., Barrett, W. L., Bode, C., Border, P. M., Brooks, C. B., Cobb, J. H., Cockerill, D. J. A., Cotton, R. J., Courant, H., DeMuth, D. M., Fields, T. H., Gallagher, H. R., Garcia-Garcia, C., Goodman, M. C., Gray, R. N., Johns, K., Kafka, T., ... Wielgosz, U. M. (1997). Measurement of the atmospheric neutrino flavour composition in Soudan 2. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 391(3-4), 491-500. https://doi.org/10.1016/S0370-2693(96)01609-7