Horizontal muons and a search for AGN neutrinos in Soudan 2

D. DeMuth, G. J. Alner, D. Ayres, W. L. Barrett, P. Border, D. J.A. Cockerill, J. H. Cobb, H. Courant, T. Fields, H. Gallagher, Maury C. Goodman, R. Gran, T. Joffe-Minor, T. Kafka, S. Kasahara, P. J. Litchfield, W. A. Mann, M. Marshak, R. Milburn, W. MillerL. Mualem, A. Napier, W. Oliver, G. F. Pearce, E. Peterson, D. Petyt, K. Ruddick, M. Sanchez, J. Schneps, A. Sousa, B. Speakman, J. Thron, H. J. Trost, J. Uretsky, G. Villaume, N. West

Research output: Contribution to journalArticlepeer-review

6 Scopus citations


We measure the horizontal ( cos(θz) <0.14 corresponding to a slant depth cut 14 kmwe) neutrino-induced muon flux (Eμ>1.8 GeV) in Soudan 2 to be 4.01 ± 0.50 ±0.30 ×10-13 cm-2 s-1. From the absence of horizontal muons with large energy loss, we set a limit on the flux of muon neutrinos from active galactic nuclei.

Original languageEnglish (US)
Pages (from-to)533-547
Number of pages15
JournalAstroparticle Physics
Issue number5
StatePublished - Feb 2004

Bibliographical note

Funding Information:
We thank Rick Egeland, Leah M. Goodman and Adrian Ryerson for their help in this analysis. This work was supported by the US Department of Energy, the UK Particle Physics and Astronomy Research Council, and the State and University of Minnesota. We also wish to thank the Minnesota Department of Natural Resources for allowing us to use the facilities of the Soudan Underground Mine State Park.


  • IceCube
  • Neutrino astronomy
  • Neutrino telescope


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