2009/08/31 by Kiwoon Choi, Kwang Sik Jeong, Wan-Il Park +1 · 1 citation
Physics and Astronomy · #Astrophysics #Baryogenesis #Baryon asymmetry #Big Bang nucleosynthesis #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #Dark matter #Electron #Gravitino #Higgs boson #Inflation (cosmology) #Leptogenesis #Lepton #Lepton number #Lightest Supersymmetric Particle #Minimal Supersymmetric Standard Model #Moduli #Nuclear physics #Nucleosynthesis #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum mechanics #Supergravity #Supernova #Supersymmetry #Theoretical physics #hep-ph
paper · pdf · doi:10.1088/1475-7516/2009/11/018
published as JCAP 0911:018,2009 · 34 pages, typos corrected, comments and references added
arxiv created 2009/09/25 · openalex publication_date 2009/11/18 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We present a thermal inflation model that incorporates the Affleck-Dine leptogenesis in heavy gravitino/moduli scenario, which solves the moduli-induced gravitino problem while producing a correct amount of baryon asymmetry and relic dark matter density. The model involves two singlet flat directions stabilized by radiative corrections associated with supersymmetry breaking, one direction that generates the Higgs μ and B parameters, and the other direction that generates the scale of spontaneous lepton number violation. The dark matter is provided by the lightest flatino which might be identified as the axino if the model is assumed to have a U(1) PQ symmetry to solve the strong CP problem. We derive the conditions for the model to satisfy various cosmological constraints coming from the Big-Bang nucleosynthesis and the dark matter abundance.