Constraints on the non-standard interaction in propagation from atmospheric neutrinos

Abstract

The sensitivity of the atmospheric neutrino experiments to the non-standard flavor-dependent interaction in neutrino propagation is studied under the assumption that the only nonvanishing components of the non-standard matter effect are the electron and tau neutrino components ${\epsilon }_{ee}$, ${\epsilon }_{e\tau }$, ${\epsilon }_{\tau \tau }$ and that the tau-tau component satisfies the constraint ${\epsilon }_{\tau \tau }=|{\epsilon }_{e\tau }{|}^2/(1+{\epsilon }_{ee})$ which is suggested from the high energy behavior for atmospheric neutrino data. It is shown that the Superkamiokande (SK) data for 4438 days constrains $|\tan \beta |\equiv |{\epsilon }_{e\tau }/(1+{\epsilon }_{ee})|\lesssim 0.8$ at 2.5$\sigma$ (98.8\%) CL whereas the future Hyperkamiokande experiment for the same period of time as SK will constrain as $|\tan \beta |\lesssim 0.3$ at 2.5$\sigma$CL from the energy rate analysis and the energy spectrum analysis will give even tighter bounds on ${\epsilon }_{ee}$ and $|{\epsilon }_{e\tau }|$.

17 pages, 14 figures, uses jheppub.sty

References in corpus (8)

• Non-standard neutrino interactions in reactor and superbeam experiments
• Limits on sterile neutrino mixing using atmospheric neutrinos in Super-Kamiokande
• Neutrino factory optimization for non-standard interactions
• Probing Non-Standard Neutrino Interactions with Neutrino Factories
• A Long Baseline Neutrino Oscillation Experiment Using J-PARC Neutrino Beam and Hyper-Kamiokande
• Two modes of searching for new neutrino interactions at MINOS
• Probing Nonstandard Neutrino Physics by Two Identical Detectors with Different Baselines
• New Physics Effects in Long Baseline Experiments

Cited by in corpus (3)

• The possibility to observe the non-standard interaction by the Hyperkamiokande atmospheric neutrino experiment
• Will atmospheric neutrino experiment at Hyper-Kamiokande see non-standard interaction effects?
• Sensitivity of atmospheric neutrino experiments to neutrino non-standard interactions