ABSTRACT
Neutrinos are massless in the MSSM. However, from neutrino oscillations, we have the following experimental values for the mixing angles [227]: sin 2 θ 12 = 0 . 307 - 0.016 + 0.018 , $$ \begin{aligned} \sin ^2 \theta _{12}&= 0.307 ^{+0.018}_{-0.016}, \end{aligned} $$ https://s3-euw1-ap-pe-df-pch-content-public-p.s3.eu-west-1.amazonaws.com/9781315367903/c2682a74-a79a-4ae8-b55f-fb03894f6bcd/content/math13_1.tif"/> sin 2 θ 23 = 0 . 38 - 0.021 + 0.024 , $$ \begin{aligned} \sin ^2 \theta _{23}&= 0.38 ^{+0.024}_{-0.021}, \end{aligned} $$ https://s3-euw1-ap-pe-df-pch-content-public-p.s3.eu-west-1.amazonaws.com/9781315367903/c2682a74-a79a-4ae8-b55f-fb03894f6bcd/content/math13_2.tif"/> sin 2 θ 13 = 0.0244 ± 0.0025 . $$ \begin{aligned} \sin ^2 \theta _{13}&= 0.0244 \pm 0.0025 . \end{aligned} $$ https://s3-euw1-ap-pe-df-pch-content-public-p.s3.eu-west-1.amazonaws.com/9781315367903/c2682a74-a79a-4ae8-b55f-fb03894f6bcd/content/math13_3.tif"/>
