On the Characteristics of the Neutrino Events in (Ultra-)High Energy Astrophysics Experiments from the view point of Energy Estimation. Akeo Misaki Research Institute For Science and engineering, Waseda University, Tokyo, Japan. Invitation to a point in dispute.
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On the Characteristics of the Neutrino Events in (Ultra-)High Energy Astrophysics Experiments from the view point of Energy Estimation
For Science and engineering, Waseda University, Tokyo, Japan
1.Reliable Estimation of the Energies of the Neutrino Events
2. Reliable Estimation of the Incident Direction of the Neutrino Events
To invite the participants to a point dispute, let us start from CONCLUSION, not INTRODUCTION.
1. Muon Neutrino Events: Inevitably Partially Contained Events
One could not even estimate the energies of the muons from muon neutrino events (! ?)
2. Electron Neutrino Events: Usually, Fully Contained Events. Inevitably, Partially Contained Events in Ultra-High Energies (LPM shower)
A production Spectrum for Muon
Nμ(Eμ)dEμ∝ Eμ－(γ+1) dEμ
Random sampling ofEμ from Eμ－(γ+1) dEμ
The first prediction on the characteristics of the LPM shower
Nuovo Cimento 48A, 509 (1978)
The first prediction on the multi-peak structure of the LPM shower.
E0=1017 eV Emin=109 eV
The same LPM shower with different threshold energies.
The LPM shower with deep crevasse.
The first description on the average behavior of the LPM shower in water.
Fractional dissipated energies of the LPM shower in water.
4848 cu = 1700 meters