A Study of Cosmic Ray Composition in the Knee Region using Multiple Muon Events in the Soudan 2 Detector

Preprint

5 December 1996

preprint
Published by arXiv in arXiv

Abstract

Deep underground muon events recorded by the Soudan 2 detector, located at a depth of 2100 meters of water equivalent, have been used to infer the nuclear composition of cosmic rays in the "knee" region of the cosmic ray energy spectrum. The observed muon multiplicity distribution favors a composition model with a substantial proton content in the energy region 800,000 - 13,000,000 GeV/nucleus.

Keywords

MUON MULTIPLICITY
RAY COMPOSITION
MUON EVENTS
KNEE REGION
UNDERGROUND
COSMIC RAY
SOUDAN

All Related Versions

Version 1, 1996-12-05, ArXiv
Version 2, 1997-02-18, ArXiv
Published version: Physical Review D, 55 (9), 5282.

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