Dynamical supersymmetry breaking and late-time R symmetry breaking as the origin of cosmic inflation

摘要: Spontaneously broken supersymmetry (SUSY) and a vanishingly small cosmological constant imply that $R$ symmetry must be spontaneously at low energies. Based on this observation, we suppose that, in the sector responsible for low-energy breaking, discrete remains preserved high energies only becomes dynamically relatively late times evolution, i.e., after dynamical breaking of SUSY. Prior to Universe is then bound quasi--de Sitter phase---which offers explanation occurrence cosmic inflation. This scenario yields new perspective interplay between SUSY inflation, which neatly fits into paradigm high-scale SUSY: inflation driven by SUSY-breaking vacuum energy density, while chiral field Polonyi field, serves as inflaton. Because slow-roll not spoiled otherwise dangerous gravitational corrections supergravity. We illustrate our idea means concrete example, both are strong gauge dynamics late-time triggered inflaton value. In model, scales unified, inflationary predictions similar those F-term hybrid supergravity, reheating proceeds via gravitino decay temperatures consistent with thermal leptogenesis, sparticle mass spectrum follows from pure gravity mediation. Dark matter consists thermally produced winos TeV range.