Getting the Most From Atmospheric Neutrinos
High Energy Physics - Phenomenology
2009-10-31 v1
Abstract
Observations of atmospheric neutrinos by the SuperKamiokande collaboration have demonstrated large mixing of the muon-neutrino. However the present atmospheric neutrino data does not significantly constrain the associated mixing of the electron-neutrino, or the sign of the mass-squared difference. Here we identify the diagnostics for these quantities and they also test the theory of how matter affects neutrino oscillations. These diagnostics are a dip in the sub-GeV muon flux at a zenith angle of 110 degrees, a bump in the electron up-down asymmetry at multi-GeV energies and a bump in the muon-antimuon upward asymmetry.
Keywords
Cite
@article{arxiv.hep-ph/9810467,
title = {Getting the Most From Atmospheric Neutrinos},
author = {J. Pantaleone},
journal= {arXiv preprint arXiv:hep-ph/9810467},
year = {2009}
}
Comments
13 pages, 2 figures To be published in Physical Review Letters