# Constraint on the matter–antimatter symmetry-violating phase in neutrino oscillations

@article{AbeAkutsuAliAltAndreopoulosAnthonyAntonovaA20,
title={Constraint on the matter–antimatter symmetry-violating phase in neutrino oscillations},
journal={Nature},
year={2020},
volume={580},
pages={339 - 344}
}
• K. R. A. C. C. L. M. S. A. T. Y. Y. E. T. Y. S. M. G. Abe Akutsu Ali Alt Andreopoulos Anthony Antonova A
• Published 9 October 2019
• Physics
• Nature
The charge-conjugation and parity-reversal (CP) symmetry of fundamental particles is a symmetry between matter and antimatter. Violation of this CP symmetry was first observed in 19641, and CP violation in the weak interactions of quarks was soon established2. Sakharov proposed3 that CP violation is necessary to explain the observed imbalance of matter and antimatter abundance in the Universe. However, CP violation in quarks is too small to support this explanation. So far, CP violation has not…
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## References

SHOWING 1-10 OF 66 REFERENCES

### CP Violation in the Lepton Sector and Implications for Leptogenesis

• Physics
• 2017
We review the current status of the data on neutrino masses and lepton mixing and the prospects for measuring the CP-violating phases in the lepton sector. The possible connection between low energy

### Connecting low energy leptonic CP-violation to leptogenesis

• Physics
• 2007
It was commonly thought that the observation of low energy leptonic $CP$-violating phases would not automatically imply the existence of a baryon asymmetry in the leptogenesis scenario. This

### Search for CP Violation in Neutrino and Antineutrino Oscillations by the T2K Experiment with 2.2×10^{21} Protons on Target.

• Physics
Physical review letters
• 2018
The T2K experiment measures muon neutrino disappearance and electron neutRino appearance in accelerator-produced neutrinos and antineutrino beams and obtained 2σ confidence interval for the CP-violating phase, δ_{CP, does not include the CP -conserving cases (δ_{ CP}=0, π).

### Erratum: Inclusive quasielastic charged-current neutrino-nucleus reactions [Phys. Rev. C 70, 055503 (2004)]

• Physics
• 2005
The error has no consequences for the rest of the paper because the correct equation was used in all calculations. Another error is to be noticed in Appendix D after Eq. (D1). When it says “incoming

### Inclusive nucleon emission induced by quasi-elastic neutrino-nucleus interactions

• Physics
• 2006
A previous model on inclusive charged-current quasi-elastic nuclear reactions [J. Nieves, J.E. Amaro and M. Valverde, Phys. Rev. C 70 (2004) 055503] is extended to include neutral- and

### A basis independent formulation of the connection between quark mass matrices, CP violation and experiment

In the standard eletroweak model, with three families, a one-to-one correspondence between certain determinants involving quark mass matrices (m andm′ for charge 2/3 and −1/3 quarks respectively) and

### Observation of electron neutrino appearance in a muon neutrino beam.

• Physics
Physical review letters
• 2014
The T2K experiment has observed electron neutrino appearance in a muon neutrinos beam produced 295 km from the Super-Kamiokande detector with a peak energy of 0.6 GeV, corresponding to a significance of 7.3σ.

### Inclusive charged-current neutrino-nucleus reactions

• Physics
• 2011
We present a model for weak charged-current induced nuclear reactions at energies of interest for current and future neutrino oscillation experiments. This model is a natural extension of the work in

### Differences in Quasi-Elastic Cross-Sections of Muon and Electron Neutrinos

• Physics
• 2012
Accelerator neutrino oscillation experiments seek to make precision measurements of the neutrino flavor oscillations muon (anti)neutrino to electron (anti)neutrino in order to determine the mass