Combining LSND and Atmospheric Anomalies in a Three-Neutrino Picture

Abstract

We investigate the three-neutrino mixing scheme for solving the atmospheric and LSND anomalies. We find the region in the parameter space that provides a good fit to the LSND and the SK atmospheric data, taking into account the CHOOZ constraint. We demonstrate that the goodness of this fit is comparable to that of the conventional fit to the solar and atmospheric data. Large values of the LSND angle are favoured and ${\sin }^2(2{\theta }_{\mathrm{LSND}})$ can be as high as 0.1. This can have important effects on the atmospheric electron neutrino ratios as well as on down-going multi-GeV muon neutrino ratios. We examine the possibility of distinguishing this scheme from the conventional one at the long baseline experiments. We find that the number of electron neutrino events observed at the CERN to Gran Sasso experiment may lead us to identify the scheme, and hence the mass pattern of neutrinos.

References in corpus (13)

• Measurement of the rate of nu_e + d --> p + p + e^- interactions produced by 8B solar neutrinos at the Sudbury Neutrino Observatory
• Evidence for Neutrino Oscillations from the Observation of Electron Anti-neutrinos in a Muon Anti-Neutrino Beam
• Constraints on Neutrino Oscillations Using 1258 Days of Super-Kamiokande Solar Neutrino Data
• Detection of Accelerator-Produced Neutrinos at a Distance of 250 km
• 4-Neutrino mass schemes and the likelihood of (3+1)-mass spectra
• Solar neutrinos: global analysis and implications for SNO
• Atmospheric neutrino flux supported by recent muon experiments
• Solar and Atmospheric Four-Neutrino Oscillations
• Super-Kamiokande atmospheric neutrinos: Status of subdominant oscillations
• A new fit to solar neutrino data in models with large extra dimensions
• Calculation of atmospheric neutrino flux
• Neutrino anomalies and large extra dimensions
• Can three-flavor oscillations solve the solar neutrino problem?

Cited by in corpus (6)

• Upper limits for neutrino oscillations muon-antineutrino to electron-antineutrino from muon decay at rest
• A combined analysis of short-baseline neutrino experiments in the (3+1) and (3+2) sterile neutrino oscillation hypotheses
• Statistical Analysis of Different Muon-antineutrino->Electron-antineutrino Searches
• CPT violating neutrinos in the light of KamLAND and Super-K
• Supernova Neutrinos and the LSND Evidence for Neutrino Oscillations
• Probing CPT violation with atmospheric neutrinos