Testable Flavored TeV-scale Resonant Leptogenesis with MeV-GeV Dark Matter in a Neutrinophilic 2HDM

Abstract

We explore flavored resonant leptogenesis embedded in a neutrinophilic 2HDM. Successful leptogenesis is achieved by the very mildly degenerate two heavier right-handed neutrinos (RHNs), $N_2$ and $N_3$, with mass splitting of only $\Delta M_{32}/M_2\sim \mathcal{O}(0.1\%-1\%)$. The lightest RHN, with MeV-GeV-scale mass, lies below the sphaleron freeze-out temperature and remains stable, serving as a dark matter candidate. The model enables TeV-scale leptogenesis while avoiding the extreme mass degeneracy plagued conventional resonant leptogenesis. Baryon asymmetry, neutrino masses, and potentially the dark matter relic density can be addressed within a unified and experimentally testable framework.

arXiv comment10 pages with 6 figures; aligned withe the version accpeted in PRD

References in corpus (44)

• Oscillating neutrinos and mu --> e, gamma
• Leptogenesis
• A lower bound on the right-handed neutrino mass from leptogenesis
• Resonant Leptogenesis
• Leptogenesis for Pedestrians
• Big-Bang Nucleosynthesis and Hadronic Decay of Long-Lived Massive Particles
• One percent determination of the primordial deuterium abundance
• Electroweak-Scale Resonant Leptogenesis
• The Sphaleron Rate in the Minimal Standard Model
• NuFit-6.0: Updated global analysis of three-flavor neutrino oscillations
• A possible symmetry of the $\nu$MSM
• The Beam and detector of the NA62 experiment at CERN
• Flavor effects on leptogenesis predictions
• The Large Enriched Germanium Experiment for Neutrinoless Double Beta Decay (LEGEND)
• Naturally Small Seesaw Neutrino Mass with No New Physics Beyond the TeV Scale
• Do experiments suggest a hierarchy problem?
• Sensitivity and discovery potential of the proposed nEXO experiment to neutrinoless double beta decay
• The Forward Physics Facility: Sites, Experiments, and Physics Potential
• Detecting and Studying High-Energy Collider Neutrinos with FASER at the LHC
• Flavour Covariant Transport Equations: an Application to Resonant Leptogenesis
• Resonant τ-Leptogenesis with Observable Lepton Number Violation
• Dark Matter from Split Seesaw
• Probing Physics Beyond the Standard Model: Limits from BBN and the CMB Independently and Combined
• The CUPID-Mo experiment for neutrinoless double-beta decay: performance and prospects
• On Higgs and sphaleron effects during the leptogenesis era
• SENSEI: First Direct-Detection Results on sub-GeV Dark Matter from SENSEI at SNOLAB
• TeV scale resonant leptogenesis from supersymmetry breaking
• Kadanoff-Baym Approach to Flavour Mixing and Oscillations in Resonant Leptogenesis
• Soft L_e-L_mu-L_tau flavour symmetry breaking and sterile neutrino keV Dark Matter
• Three-Flavoured Non-Resonant Leptogenesis at Intermediate Scales
• On Resonant Leptogenesis
• Deriving Models for keV sterile Neutrino Dark Matter with the Froggatt-Nielsen mechanism
• Connecting bimaximal neutrino mixing to a light sterile neutrino
• Natural leptogenesis and neutrino masses with two Higgs doublets
• Seesaw model with softly broken L_e - L_μ- L_τ
• $\nu$-Two Higgs Doublet Model and its Collider Phenomenology
• Constraining General Two Higgs Doublet Models by the Evolution of Yukawa Couplings
• Right-handed neutrinos: dark matter, lepton flavor violation and leptonic collider searches
• Prospects for Light Dark Matter Searches at Large-Volume Neutrino Detectors
• Thermal leptogenesis in a supersymmetric neutrinophilic Higgs model
• keV Sterile Neutrino Dark Matter and Neutrino Model Building
• Exploring collider aspects of a neutrinophilic Higgs doublet model in multilepton channels
• Systematic approach to Delta L=1 processes in thermal leptogenesis
• Resonant leptogenesis with mild degeneracy

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