Lepton Flavor Violation and Supersymmetric Dirac Leptogenesis

Abstract

Dirac leptogenesis (or Dirac neutrinogenesis), in which neutrinos are purely Dirac particles, is an interesting alternative to the standard leptogenesis scenario. In its supersymmetric version, the modified form of the superpotential required for successful baryogenesis contributes new, generically non-flavor-diagonal terms to the slepton and sneutrino mass matrices. In this work, we examine how current experimental bounds on flavor-changing effects in the lepton sector (and particularly the bound on Mu -> e Gamma) constrain Dirac leptogenesis and we find that it is capable of succeeding with superpartner masses as low as 100 GeV. For such light scalars and electroweakinos, upcoming experiments such as MEG are generically expected to observe signals of lepton flavor violation.

15 pages, 4 figures, corrected parametric dependance on leading LFV term, figure 2 and discussion modified accordingly, conclusions unchanged

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Cited by in corpus (23)

• Leptogenesis
• Leptogenesis in the Universe
• Leptogenesis in the Exceptional Supersymmetric Standard Model: flavour dependent lepton asymmetries
• Common Origin of Neutrino Mass, Dark Matter and Dirac Leptogenesis
• Towards distinguishing Dirac from Majorana neutrino mass with gravitational waves
• Realistic Neutrinogenesis with Radiative Vertex Correction
• Alternative formulation of left-right symmetry with $B-L$ conservation and purely Dirac neutrinos
• Resonant Dirac leptogenesis on throats
• Cloistered Baryogenesis
• Neutrinoless Double-$\beta$ Decay with Nonstandard Majoron Emission
• Constraining the Lorentz-Violating Bumblebee Vector Field with Big Bang Nucleosynthesis and Gravitational Baryogenesis
• Searching for Nambu-Goldstone Bosons at the LHC
• Low scale Dirac leptogenesis and dark matter with observable $\Delta N_{\mathrm{eff}}$
• Unitarity constraints on asymmetric freeze-in
• Dirac Leptogenesis in extended nMSSM
• Dark matter asymmetry in supersymmetric Dirac leptogenesis
• Unified picture for Dirac neutrinos, dark matter, dark energy and matter-antimatter asymmetry
• Asymmetric Self-interacting Dark Matter via Dirac Leptogenesis
• S.M.A.S.H.E.D.: Standard Model Axion Seesaw Higgs Inflation Extended for Dirac Neutrinos
• Leptogenesis, Dark Matter and Higgs Phenomenology at TeV
• Theory and Phenomenology of Dirac Leptogenesis
• B-L Conserved Baryogenesis
• Probing High Scale Dirac Leptogenesis via Gravitational Waves from Domain Walls