2015/09/30 by Fuminori Hasegawa, Yusuke Yamada
Physics and Astronomy · #Algorithm #Black Holes and Theoretical Physics #Computer science #Cosmology #Cosmology and Gravitation Theories #Gravitino #Inflation (cosmology) #Mathematical physics #Multiplet #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum mechanics #Scale (ratio) #Supergravity #Supersymmetry #Supersymmetry breaking #Theoretical physics #Universe #hep-ph #hep-th
paper · pdf · doi:10.1103/physrevd.92.105027
published as Phys. Rev. D 92, 105027 (2015) · 5pages, v2: typos corrected, title changed, version published in PRD
openalex publication_date 2015/11/19 · arxiv created 2015/12/14 · arxiv updated 2015/12/15 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We propose a supergravity model with a constrained curvature multiplet, which realizes the Starobinsky inflation and the de Sitter vacuum in the present Universe simultaneously. Surprisingly, at the vacuum, the soft supersymmetry-breaking scale for the minimal supersymmetric standard model sector becomes the TeV scale; however, the gravitino mass scale becomes much higher than that of soft supersymmetry breaking. Such a hierarchical structure, which naturally avoids the gravitino problem, appears without introducing a new scale other than the inflation scale.