Jul 4 – 11, 2012
Melbourne Convention and Exhibition Centre
Australia/Melbourne timezone
ICHEP2012 - 36th International Conference for High Energy Physics

Matter Inflation

Jul 7, 2012, 4:15 PM
Room 216 (Melbourne Convention and Exhibition Centre)

Room 216

Melbourne Convention and Exhibition Centre

Melbourne Australia
Parallel Sessions Track 11. Particle Astrophysics and Cosmology Room 216 - Particle Astrophysics and Cosmology -TR11


Prof. Stefan Antusch (University of Basel (CH))


We discuss inflation models in supergravity, where the inflaton resides in the matter sector of the theory. These models, referred to as matter inflation, are based on a tribrid structure in the superpotential and allow for a Heisenberg symmetry or a shift symmetry for solving the eta-problem. Possible close connections to particle physics theories are discussed, such as sneutrino hybrid inflation, or models where a D-flat direction of GUT multiplets acts as the inflaton in SO(10) Grand Unified Theories. Although inflation ends by a waterfall, associated with the breaking of a GUT or family symmetry, the production of topological defects can be avoided by vacuum preselection.

Primary author

Prof. Stefan Antusch (University of Basel (CH))

Presentation materials