1995/04/26 by Daijiro Suematsu, Yoshio Yamagishi · 1 citation
Physics and Astronomy · #Chaos control and synchronization #Cosmology and Gravitation Theories #Quantum chaos and dynamical systems #astro-ph #hep-ph
paper · pdf · doi:10.1142/s0217732395003057
published as Mod.Phys.Lett. A10 (1995) 2923 · 10 pages, LaTeX
arxiv created 1995/04/26 · openalex publication_date 1995/12/14 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We study the inflation due to the D-flat direction of an extra U(1). This scenario is a hybrid of a right-handed sneutrino inflaton scenario and a gauge nonsinglet inflaton scenario. The inflaton is a gauge nonsinglet field which induces a right-handed neutrino mass spontaneously through an extra U(1) D-flat direction. This right-handed neutrino mass can be used to explain the solar neutrino problem. The reheating temperature resulting from the decay of the coherent oscillation of the right-handed sneutrino is sufficiently high so that the baryogenesis based on the lepton number asymmetry can be applicable. We also discuss the realistic model building.