Bounds on $\nu_{\mu}$ Oscillations from Atmospheric Neutrinos

TL;DR

This paper reanalyzes atmospheric muon neutrino data to establish bounds on neutrino oscillation parameters, challenging recent claims of neutrino mass with new limits on mixing angles and mass differences.

Contribution

It provides updated bounds on neutrino oscillation parameters from atmospheric neutrino data, offering a critical assessment against recent neutrino mass claims.

Findings

Bound on sin^2(2θ) < 0.72

Constraints on Δm^2 from atmospheric neutrino data

Conflict with recent neutrino mass announcement

Abstract

A reanalysis of identified muon neutrino interactions from IMB 3 yields bounds on $\sin^{2}(2 \theta)$ and $\Delta m^{2}$. The limit $\sin^{2}(2 \theta) < 0.72$ is in conflict with the recent announcement of a neutrino mass.