Affleck-Dine (Pseudo)-Dirac Neutrinogenesis

Abstract

We consider the Affleck-Dine mechanism for leptogenesis in the minimal MSSM with Dirac or Pseudo-Dirac neutrinos. The rolling of scalars along D-flat directions generates a left-right asymmetry in the sneutrino sector, only the left part of which is transferred to a baryon asymmetry via sphaleron transitions. In the pure Dirac case the baryon asymmetry of the Universe is thus mirrored by an equal and opposite asymmetry in the leptons. The mechanism is also found to work when the neutrinos are pseudo-Dirac. No additional field needs to be added to the MSSM other than the right-handed neutrino.

Latex, 3 figures, 1 bib file, 2 added reference, 1 minor correction, 1 added comment

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• Neutrino-Flavoured Sneutrino Dark Matter
• Right-Handed Sneutrino Condensate Cold Dark Matter and the Baryon-to-Dark Matter Ratio
• From Dirac neutrino masses to baryonic and dark matter asymmetries
• Non-thermal right-handed sneutrino dark matter and the Omega_DM/Omega_b problem
• Realistic Neutrinogenesis with Radiative Vertex Correction
• Alternative formulation of left-right symmetry with $B-L$ conservation and purely Dirac neutrinos
• Simultaneous Generation of WIMP Miracle-like Densities of Baryons and Dark Matter
• Lepton Flavor Violation and Supersymmetric Dirac Leptogenesis
• Neutrinoless Double-$\beta$ Decay with Nonstandard Majoron Emission
• Peccei-Quinn symmetry for Dirac seesaw and leptogenesis
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• Short review about the MSSM with three right-handed neutrinos (MSSM3RHN)
• Baryogenesis via left-right asymmetry generation by Affleck-Dine mechanism in Dirac neutrino model
• Theory and Phenomenology of Dirac Leptogenesis