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 $|{\epsilon }_{e\tau }|$.

arXiv comment17 pages, 14 figures, uses jheppub.sty

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Cited by in corpus (5)

• Non standard neutrino interactions
• The possibility to observe the non-standard interaction by the Hyperkamiokande atmospheric neutrino experiment
• Bounds on non-standard interactions of neutrinos from IceCube DeepCore data
• Will atmospheric neutrino experiment at Hyper-Kamiokande see non-standard interaction effects?
• Sensitivity of atmospheric neutrino experiments to neutrino non-standard interactions