ContentPage 5 - Mean number of stochastic energy losses |
Author: H. Geenen E-Mail: geenen@physik.uni-wuppertal.de Homepage: http://amanda.uni-wuppertal.de/~geenen Summary: I present results from checks on muon propagation implementations in the energy range from 0.7 TeV to 2 PeV and if their output can be considered physical. Monoenergetic muon samples have been created and propagated 2000 meters through ice with mudedx, propmu and mmc. The number of stochastic energy losses above a given threshold was investigated as well as the energy spectrum of these (the secondary tracks). 1.) When increasing the energy the mudedx and propmu energy losses stagnate at 33 resp. 4 tracks, whereas mmc energy losses rise from 10 tracks at 0.7 TeV to 360 tracks at 2 PeV, as is physically expected. 2.) The physical expectation of the distribution of energy losses has been calculated analytically. The comparison to the propagation tools shows that mudedx and propmu lead to an unphysical 'jelly bag cap-structure'. 3.) A brief comparision to P.Desiati's mum results is given. Conclusion: The use of mudedx and propmu is therefore discouraged, mmc and mum represent the physical expectation. Edited with: |
