Measurement of the energy spectrum of underground muons at Gran Sasso with a transition radiation detector

Preprint

9 July 1998

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.hep-ex/9807009

Abstract

We have measured directly the residual energy of cosmic ray muons crossing the MACRO detector at the Gran Sasso Laboratory. For this measurement we have used a transition radiation detector consisting of three identical modules, each of about 12 m^2 area, operating in the energy region from 100 GeV to 1 TeV. The results presented here were obtained with the first module collecting data for more than two years. The average single muon energy is found to be 320 +/- 4 (stat.) +/- 11 (syst.) GeV in the rock depth range 3000-6500 hg/cm^2. The results are in agreement with calculations of the energy loss of muons in the rock above the detector.

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All Related Versions

Version 1, 1998-07-09, ArXiv
Published version: Astroparticle Physics, 10 (1), 11.

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