Abstract
In this chapter, possibility for the future neutrino experiments are discussed. The remaining issues of neutrino oscillation studies are, to measure the CP violation parameter \(\updelta \), to determine \(\Delta m^2_{31}\) mass hierarchy and the \(\uptheta _{23}\) octant degeneracy. Approximated neutrino oscillation formulas with matter effects are introduced first and then possibilities of future experiments to address the remaining issues are discussed based on them. There are anomalies in various neutrino oscillation experiments which can be explained if there is fourth neutrino that is called sterile neutrino. The search for the sterile neutrino is another important subject in the future neutrino oscillation experiments and is discussed here. In order to determine the transition amplitudes, the absolute neutrino mass is necessary in addition to the neutrino oscillation parameters. The relation between the measured neutrino oscillation parameters and possible absolute mass measurements are discussed. Finally the neutrino-less double beta decay experiment, that can determine the absolute neutrino mass and whether the neutrino is Majorana particle or Dirac particle, is explained.
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- 1.
Strictly speaking, this is not a measurement of the CP asymmetry. The measured \(\sin \updelta \) can be associated with the CP asymmetry effect when the standard three flavor neutrino scheme is correct.
- 2.
We assume CPT symmetry and \(m_{{\overline{\nu }}} = m_{\nu }\) throughout the text.
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Suekane, F. (2015). Future Possibilities of Neutrino Oscillation Experiments. In: Neutrino Oscillations. Lecture Notes in Physics, vol 898. Springer, Tokyo. https://doi.org/10.1007/978-4-431-55462-2_7
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DOI: https://doi.org/10.1007/978-4-431-55462-2_7
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