Leptogenesis from the Asymmetric Texture

Moinul Hossain Rahat

doi:10.1103/physrevd.103.035011

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arXiv · 2008.04204

Leptogenesis from the Asymmetric Texture

Moinul Hossain Rahat

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Abstract

We investigate non-resonant thermal leptogenesis in the context of the $SU(5) \times \mathcal{T}_{13}$ "asymmetric texture", where both Dirac and Majorana ${CP}$ violation arise from a single phase in the tribimaximal seesaw mixing matrix. We show that the baryon asymmetry of the universe can be explained in this model only when flavor effects are considered for right-handed neutrino masses of $\mathcal{O}(10^9 - 10^{12})$ $\text{GeV}$. The sign of the baryon asymmetry also determines the sign of the previously predicted Dirac $\require{cancel}\cancel{CP}$ phase $|\delta_{CP}| = 1.32\pi$, consistent with the latest global fit $\delta_{CP}^{PDG} = 1.37 \pm 0.17\pi$.

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Moinul Hossain Rahat. 2020-08-10. Leptogenesis from the Asymmetric Texture. https://doi.org/10.1103/physrevd.103.035011

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