Affleck-Dine leptogenesis with triplet Higgs

Abstract

We study an extension of the supersymmetric standard model including a pair of electroweak triplet Higgs $\Delta$ and $\bar{\Delta }$. The neutrinos acquire Majorana masses mediated by these triplet Higgs fields rather than the right-handed neutrinos. The successful leptogenesis for baryogenesis can be realized after the inflation through the Affleck-Dine mechanism on a flat manifold consisting of $\Delta$, $\bar{\Delta }$, ${\tilde{e}}^c$ (anti-slepton), even if the triplet Higgs mass $M_{\Delta }$ is much larger than the gravitino mass $m_{3/2}\sim 10^3\mathrm{GeV}$. Specifically, due to the effects of the potential terms provided with the superpotential terms $M_{\Delta }\bar{\Delta }\Delta$, $({\lambda }_{L/}/2M)\bar{\Delta }\bar{\Delta }{e}^c{e}^c$, $({\lambda }_{\Delta }/2M)\bar{\Delta }\Delta \bar{\Delta }\Delta$ (${\lambda }_{L/}/{\lambda }_{\Delta }\sim 0.3-3$), the phases of $\Delta$, $\bar{\Delta }$, ${\tilde{e}}^c$ are rotated at the time with the Hubble parameter $H\sim M_{\Delta }$, producing generally the asymmetry with fraction ${\epsilon }_L\sim 0.1$. If $M_{\Delta }$ is large enough, this early leptogenesis can be completed before the thermal effects take place.

11 pages, 2 figures

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Cited by in corpus (10)

• Affleck-Dine Leptogenesis from Higgs Inflation
• Type II Seesaw Leptogenesis
• Dynamics of MSSM flat directions consisting of multiple scalar fields
• Affleck Dine leptogenesis via multiple flat directions
• Lepton flavor violation with supersymmetric Higgs triplets in TeV region for neutrino masses and leptogenesis
• Flat manifold leptogenesis in the supersymmetric standard model
• Leptogenesis with supersymmetric Higgs triplets in TeV region
• Affleck-Dine leptogenesis via multiscalar evolution in a supersymmetric seesaw model
• Vacuum stability of the type II seesaw leptogenesis from inflation
• Baryogenesis via left-right asymmetry generation by Affleck-Dine mechanism in Dirac neutrino model