Coincidences between extensive air showers and the Soudan 1 underground muon detector

U. Das Gupta, P. Border, K. Johns, N. Longley, M. Marshak, E. Peterson, K. Ruddick, M. Shupe, D. Ayres, J. Dawson, T. Fields, M. Goodman, E. May

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Abstract

We have operated the Soudan 1 underground muon detector in coincidence with a 36-m2 detector situated at the Earth's surface. Such a combination of detectors can yield information on the composition of the primary cosmic rays at energies above 3 × 1015 eV, where there is an abrupt change in the slope of the energy spectrum. The present experiment was meant to test the feasibility of operating such a system, and to obtain a first sample of data before the complete installation of the much larger Soudan 2 detector. These initial data seem to favor a light composition in the energy range 1015-1016 eV, but there are significant systematic uncertainties.

Original languageEnglish (US)
Pages (from-to)1459-1469
Number of pages11
JournalPhysical Review D
Volume45
Issue number5
DOIs
StatePublished - Jan 1 1992

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ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)

Cite this

Das Gupta, U., Border, P., Johns, K., Longley, N., Marshak, M., Peterson, E., Ruddick, K., Shupe, M., Ayres, D., Dawson, J., Fields, T., Goodman, M., & May, E. (1992). Coincidences between extensive air showers and the Soudan 1 underground muon detector. Physical Review D, 45(5), 1459-1469. https://doi.org/10.1103/PhysRevD.45.1459