Up-down atmospheric neutrino flux asymmetry predictions for various neutrino oscillation scenarios

Abstract

We compute up-down asymmetries for atmospheric neutrino induced electron and muon events in the SuperKamiokande detector for the following neutrino oscillation models: (A) maximally mixed $\hat{I}{½}_{\hat{I}}¼-\hat{I}{½}_{\ddot{I}}„$ or $\hat{I}{½}_{\hat{I}}¼-\hat{I}{½}_s$, (B) maximally mixed $\hat{I}{½}_{\hat{I}}¼-\hat{I}{½}_e$, (C) threefold maximal mixing between $\hat{I}{½}_e,\hat{I}{½}_{\hat{I}}¼$ and $\hat{I}{½}_{\ddot{I}}„$, and (D) neutrino oscillations via Equivalence Principle or Lorentz invariance violation. We emphasise the role of different momentum cuts.

6 pages, 6 figures, Latex