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arXiv · 1909.12147

Scalar triplet leptogenesis in the presence of right-handed neutrinos with S3 symmetry

Subhasmita Mishra·Anjan Giri
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Abstract

Leptogenesis appears to be a viable alternative to account for the baryon asymmetry of the universe through baryogenesis. In this context, we consider a scenario in which the standard model is extended with $S_3$ and $Z_2$ symmetry in addition to the two scalar triplets, two scalar doublets and three right handed neutrinos. Presence of scalar triplets and right-handed neutrinos in the scenarios of both type-I and type-II seesaw framework provide a different leptogenesis option and can help us to understand the matter-antimatter asymmetry with simple $S_3$ symmetry. We discuss the neutrino phenomenology and leptogenesis in both high ($O(10^{10})$ GeV) and low energy scale ($O$(2)TeV) by constraining the Yukawa couplings. Moreover, we also consider the constraints on model parameters from neutrino oscillation data and leptogenesis to explain the rare lepton flavor violating decay and muon g-2 anomaly.

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Subhasmita Mishra, Anjan Giri. 2019-09-26. Scalar triplet leptogenesis in the presence of right-handed neutrinos with S3 symmetry. https://doi.org/10.1088/1361-6471%2Fab7a86

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