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arXiv · hep-ph/0503217

The small mixing angle $θ_{13}$ and the lepton asymmetry

Song-Haeng Lee·Kim Siyeon
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Abstract

We present the correlation of low energy CP phases, both Dirac and Majorana, and the lepton asymmetry for the baryon asymmetry in the universe, with a certain class of Yukawa matrices that consist of two right-handed neutrinos and include one texture zero in themselves. For cases in which the amount of the lepton asymmetry $Y_L$ turns out to be proportional to $θ_{13}^2$, we consider the relation between two types of CP phases and the relation of $Y_L$ versus the Jarlskog invariant or the amplitude of neutrinoless double beta decay as $θ_{13}$ varies.

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Song-Haeng Lee, Kim Siyeon. 2005-05-27. The small mixing angle $θ_{13}$ and the lepton asymmetry. https://doi.org/10.1103/physrevd.71.096006

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