Dirac CP phases in a 3 + 1 neutrino scenario with $$\mu -\tau $$ μ - τ symmetry
Abstract A sterile neutrino in the $$3+1$$ 3 + 1 scheme, where the sterile accounts for neutrino anomalies not explained solely by the weak active neutrinos, arises as a natural source for the breaking of the $$\mu -\tau $$ μ - τ symmetry suggested by oscillation neutrino data. We explore the predic...
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2021
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oai:doaj.org-article:6f82a986b05b4c66996e09c1ebb79b212021-11-14T12:13:39ZDirac CP phases in a 3 + 1 neutrino scenario with $$\mu -\tau $$ μ - τ symmetry10.1140/epjc/s10052-021-09773-71434-60441434-6052https://doaj.org/article/6f82a986b05b4c66996e09c1ebb79b212021-11-01T00:00:00Zhttps://doi.org/10.1140/epjc/s10052-021-09773-7https://doaj.org/toc/1434-6044https://doaj.org/toc/1434-6052Abstract A sterile neutrino in the $$3+1$$ 3 + 1 scheme, where the sterile accounts for neutrino anomalies not explained solely by the weak active neutrinos, arises as a natural source for the breaking of the $$\mu -\tau $$ μ - τ symmetry suggested by oscillation neutrino data. We explore the predictions for the Dirac CP phases in this scenario, with and without sterile neutrino decay, and show that current limits on $$\delta _{CP}$$ δ CP suggest a normal hierarchy and a lightest neutrino scale below 0.1 eV as the most plausible explanation for that, when Majorana phases are null. Other Dirac phases turn out to be non zero as well.Eduardo Becerra-GarcíaAbdel Pérez-LorenzanaSpringerOpenarticleAstrophysicsQB460-466Nuclear and particle physics. Atomic energy. RadioactivityQC770-798ENEuropean Physical Journal C: Particles and Fields, Vol 81, Iss 11, Pp 1-15 (2021) |
| institution |
DOAJ |
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DOAJ |
| language |
EN |
| topic |
Astrophysics QB460-466 Nuclear and particle physics. Atomic energy. Radioactivity QC770-798 |
| spellingShingle |
Astrophysics QB460-466 Nuclear and particle physics. Atomic energy. Radioactivity QC770-798 Eduardo Becerra-García Abdel Pérez-Lorenzana Dirac CP phases in a 3 + 1 neutrino scenario with $$\mu -\tau $$ μ - τ symmetry |
| description |
Abstract A sterile neutrino in the $$3+1$$ 3 + 1 scheme, where the sterile accounts for neutrino anomalies not explained solely by the weak active neutrinos, arises as a natural source for the breaking of the $$\mu -\tau $$ μ - τ symmetry suggested by oscillation neutrino data. We explore the predictions for the Dirac CP phases in this scenario, with and without sterile neutrino decay, and show that current limits on $$\delta _{CP}$$ δ CP suggest a normal hierarchy and a lightest neutrino scale below 0.1 eV as the most plausible explanation for that, when Majorana phases are null. Other Dirac phases turn out to be non zero as well. |
| format |
article |
| author |
Eduardo Becerra-García Abdel Pérez-Lorenzana |
| author_facet |
Eduardo Becerra-García Abdel Pérez-Lorenzana |
| author_sort |
Eduardo Becerra-García |
| title |
Dirac CP phases in a 3 + 1 neutrino scenario with $$\mu -\tau $$ μ - τ symmetry |
| title_short |
Dirac CP phases in a 3 + 1 neutrino scenario with $$\mu -\tau $$ μ - τ symmetry |
| title_full |
Dirac CP phases in a 3 + 1 neutrino scenario with $$\mu -\tau $$ μ - τ symmetry |
| title_fullStr |
Dirac CP phases in a 3 + 1 neutrino scenario with $$\mu -\tau $$ μ - τ symmetry |
| title_full_unstemmed |
Dirac CP phases in a 3 + 1 neutrino scenario with $$\mu -\tau $$ μ - τ symmetry |
| title_sort |
dirac cp phases in a 3 + 1 neutrino scenario with $$\mu -\tau $$ μ - τ symmetry |
| publisher |
SpringerOpen |
| publishDate |
2021 |
| url |
https://doaj.org/article/6f82a986b05b4c66996e09c1ebb79b21 |
| work_keys_str_mv |
AT eduardobecerragarcia diraccpphasesina31neutrinoscenariowithmutaumtsymmetry AT abdelperezlorenzana diraccpphasesina31neutrinoscenariowithmutaumtsymmetry |
| _version_ |
1718429352262107136 |