Measurements of the charge ratio of atmospheric muons in the range 0.2 – 1.0 GeV/c by observing the decay electrons from muonic atoms

Abstract

The method of measuring precisely the different life times of negative and positive muons when stopped in matter, realised with the compact scintillator detector setup WILLI in the NIPNE-HH Bucharest, has been used to study the charge ratio of atmospheric muons. The results in the examined low energy range are relevant for recent investigations of atmospheric neutrinos and can be applied to verify calculations of atmospheric neutrino fluxes and the hadronic interaction models, used as generators in Monte Carlo simulations.