Abstract
Multiplicity spectrum of muon bundles underground, with Eµ ≥ f ew× 100 GeV, is an effective tool for study of primary Cosmic Ray spectrum and composition in wide range of the primary energies. In this paper we study integral muon number distribution measured at the Baksan Underground Scintillation Telescope (BUST). The analyzed range of the number of muon tracks crossing BUST (1 - 170) approximately corresponds to the primary energy range 1− 10 4 TeV. The analysis shows that non-power law primary spectra are preferable below the knee. Such a spectrum can be obtained as superposition of the basic power law primary spectrum and an additional component from nearby supernova remnant in the Galaxy.
Highlights
In this paper we study integral muon number distribution measured at the Baksan Underground Scintillation Telescope (BUST)
The analysis shows that non-power law primary spectra are preferable below the knee
Despite of a number of experiments the study of muon bundles underground is an unappreciated method of investigation of the primary CR spectrum and composition
Summary
Despite of a number of experiments the study of muon bundles underground is an unappreciated method of investigation of the primary CR spectrum and composition. In this paper we study integral muon number distribution measured at the Baksan Underground Scintillation Telescope (BUST). The analyzed range of the number of muon tracks crossing BUST (1 - 170) approximately corresponds to the primary energy range 1 − 104 TeV.
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