CERN Accelerating science

Article
Report number	hep-ex/9806001
Title	Muon "Depth-Intensity" Relation Measured by LVD Underground Experiment and Cosmic-Ray Muon Spectrum at Sea Level
Author(s)	Aglietta, M
Collaboration	LVD Collaboration
In:	Phys. Rev. D 58, 9 (1998) pp.92005
Subject category	Particle Physics - Experiment
Abstract	We present the analysis of the muon events with all muon multiplicities collected during 21804 hours of operation of the first LVD tower. The measured angular distribution of muon intensity has been converted to the `depth -- vertical intensity' relation in the depth range from 3 to 12 km w.e.. The analysis of this relation allowed to derive the power index, $\gamma$, of the primary all-nucleon spectrum: $\gamma=2.78 \pm 0.05$. The `depth -- vertical intensity' relation has been converted to standard rock and the comparison with the data of other experiments has been done. We present also the derived vertical muon spectrum at sea level.

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