Physics Potential of Beta/EC Beams in regard to CP Violation in Neutrino Oscillations

Low-scale seesaw and the CP violation in neutrino oscillations

Nuclear Physics B ◽

10.1016/j.nuclphysb.2018.02.018 ◽

2018 ◽

Vol 929 ◽

pp. 377-396 ◽

Cited By ~ 5

Author(s):

J.T. Penedo ◽

S.T. Petcov ◽

Tsutomu T. Yanagida

Keyword(s):

Cp Violation ◽

Neutrino Oscillations

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Unitarity of neutrino mixing matrix

EPJ Web of Conferences ◽

10.1051/epjconf/201920609009 ◽

2019 ◽

Vol 206 ◽

pp. 09009

Author(s):

Ha Nguyen Thi Kim ◽

Van Nguyen Thi Hong ◽

Son Cao Van

Keyword(s):

Cp Violation ◽

Neutrino Oscillations ◽

Graphical Form ◽

Muon Neutrinos ◽

Neutrino Mixing ◽

Electron Neutrinos ◽

Tau Neutrinos ◽

The Matrix ◽

Mixing Matrix ◽

Unitary Triangle

Neutrinos are neutral leptons and there exist three types of neutrinos (electron neutrinos νe, muon neutrinos νµ and tau neutrinos ντ). These classifications are referred to as neutrinos’s “flavors”. Oscillations between the different flavors are known as neutrino oscillations, which occurs when neutrinos have mass and non-zero mixing. Neutrino mixing is governed by the PMNS mixing matrix. The PMNS mixing matrix is constructed as the product of three independent rotations. With that, we can describe the numerical parameters of the matrix in a graphical form called the unitary triangle, giving rise to CP violation. We can calculate the four parameters of the mixing matrix to draw the unitary triangle. The area of the triangle is a measure of the amount of CP violation.

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CONCLUDING REMARKS

International Journal of Modern Physics A ◽

10.1142/s0217751x02012892 ◽

2002 ◽

Vol 17 (24) ◽

pp. 3500-3508 ◽

Cited By ~ 1

Author(s):

NICOLA CABIBBO

Keyword(s):

Cp Violation ◽

Standard Model ◽

Theoretical Prediction ◽

Decay Mode ◽

Solar Neutrino ◽

Neutrino Oscillations ◽

Expected Value ◽

Sudbury Neutrino Observatory ◽

The Standard Model ◽

First Results

Important new results have been presented at this conference. The direct violation of CP in K0 → π + π has been firmly established in two independent experiments, NA48 at CERN and KTeV at Fermilab. Both Babar at SLAC and Belle at Kek have determined the CP violation in [Formula: see text] oscillations through the study of the golden KS + Ψ decay mode. The observed CP violation agrees with the expectations of the Standard model, based on the quark-mixing phenomenon. The first results of the Sudbury Neutrino Observatory, SNO, suggest that the long-lasting solar neutrino puzzle has been finally solved in terms of neutrino oscillations. Results appeared after the conference which modify the theoretical prediction of the muon anomaly. This new result, if confirmed, would drastically reduce the significance of the discrepancy between the theoretically expected value for the muon anomaly and the recent results of the Brookhaven experiment.

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