Thermal leptogenesis in a supersymmetric neutrinophilic Higgs model

Abstract

We investigate thermal leptogenesis in a supersymmetric neutrinophilic Higgs model by taking phenomenological constraints into account, where, in addition to the minimal supersymmetric standard model, we introduce an extra Higgs field with a tiny vacuum expectation value (VEV) which generates neutrino masses. Thanks to this tiny VEV of the neutrinophilic Higgs, our model allows to reduce the mass of the lightest right-handed (s)neutrino to be $\mathcal{O}(10^5)$ GeV as keeping sufficiently large CP asymmetry in its decay. Therefore, the reheating temperature after inflation is not necessarily high, hence this scenario is free from gravitino problem.

5 pages, 1 figure

References in corpus (4)

• Big-Bang Nucleosynthesis and Gravitino
• A New Two Higgs Doublet Model
• $\nu$-Two Higgs Doublet Model and its Collider Phenomenology
• Low scale thermal leptogenesis in neutrinophilic Higgs doublet models

Cited by in corpus (15)

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• Dirac right-handed sneutrino dark matter and its signature in the gamma-ray lines
• Vacuum stability in neutrinophilic Higgs doublet model
• Hidden from View: Neutrino Masses, Dark Matter and TeV-Scale Leptogenesis in a Neutrinophilic 2HDM
• Hunting for Heavy Majorana Neutrinos with Lepton Number Violating Signatures at LHC
• Light Dirac right-handed sneutrino dark matter
• Leptogenesis and Dark Matter from Low Scale Seesaw
• Large invisible decay of a Higgs boson to neutrinos
• TeV-scale seesaw with non-negligible left-right neutrino mixings
• Phenomenology of SUSY SU(5) GUT with neutrinophilic Higgs
• Resonant leptogenesis with mild degeneracy
• Right-handed sneutrinos as asymmetric DM and neutrino masses from neutrinophilic Higgs bosons
• Phenomenology in supersymmetric neutrinophilic Higgs model with sneutrino dark matter
• Testable Flavored TeV-scale Resonant Leptogenesis with MeV-GeV Dark Matter in a Neutrinophilic 2HDM
• Dilution of axion dark radiation by thermal inflation