Physics prospects of future neutrino oscillation experiments in Asia

Abstract

The three neutrino model has 9 physical parameters, 3 neutrino masses, 3 mixing angles and 3 CP violating phases. Among them, neutrino oscillation experiments can probe 6 parameters: 2 mass squared differences, 3 mixing angles, and 1 CP phase. The experiments performed so far determined the magnitudes of the two mass squared differences, the sign of the smaller mass squared difference, the magnitudes of two of the three mixing angles, and the upper bound on the third mixing angle. The sign of the larger mass squared difference (the neutrino mass hierarchy pattern), the magnitude of the third mixing angle and the CP violating phase, and a two-fold ambiguity in the mixing angle that dictates the atmospheric neutrino oscillation should be determined by future oscillation experiments. In this talk, I introduce a few ideas of future long baseline neutrino oscillation experiments which make use of the super neutrino beams from J-PARC (Japan Proton Accelerator Research Complex) in Tokai village. We examine the potential of HyperKamiokande (HK), the proposed 1 Mega-ton water Cerenkov detector, and then study the fate and possible detection of the off-axis beam from J-PARC in Korea. We also show that very long baseline experiments with higher energy beams from J-PARC and a water Cerenkov calorimeter detector (BAND) proposed in Beijing can resolve the neutrino mass hierarchy, and lift all the degeneracies in the three neutrino model parameters.

Talk at SEESAW 1979-2004, 23-25 February 2004, KEK. 20 pages, 17 figures

References in corpus (1)

• Big Bang Nucleosynthesis (in "The Review of Particle Properties" 2004)

Cited by in corpus (15)

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• Physics Potentials with the Second Hyper-Kamiokande Detector in Korea
• Non-standard interactions and the CP phase measurements in neutrino oscillations at low energies
• Solving the neutrino parameter degeneracy by measuring the T2K off-axis beam in Korea
• Sensitivity of the T2HKK experiment to the non-standard interaction
• Physics potential of T2KK: An extension of the T2K neutrino oscillation experiment with a far detector in Korea
• The earth matter effects in neutrino oscillation experiments from Tokai to Kamioka and Korea
• Solving the degeneracy of the lepton-flavor mixing angle theta_atm by the T2KK two detector neutrino oscillation experiment
• Matter effects at the T2HK and T2HKK experiments
• The Decay of Tau Leptons Produced in Neutrino-Nucleon Scatterings
• Physics potential of neutrino oscillation experiment with a far detector in Oki Island along the T2K baseline
• Heavy neutrino mixing in the T2HK, the T2HKK and an extension of the T2HK with a detector at Oki Islands
• On ${\theta }_{23}$ Octant Measurement in $3+1$ Neutrino Oscillations in T2HKK
• Revisiting T2KK and T2KO physics potential and ${\nu }_{\mu }$ - ${\bar{\nu }}_{\mu }$ beam ratio
• The small mixing angle ${\theta }_{13}$ and the lepton asymmetry