Aug 23 – 28, 2010
Bonn
Europe/Berlin timezone

Racetrack inflation and F-term uplifting

Aug 24, 2010, 3:25 PM
15m
Hörsaal I (Bonn)

Hörsaal I

Bonn

Nussallee 12

Speaker

Marcin Badziak (University of Warsaw)

Description

It is shown that two classes of racetrack inflation models, saddle point and inflection point ones, can be constructed in a fully supersymmetric framework with the matter field F-term as a source of supersymmetry breaking and uplifting. Two models of F-term supersymmetry breaking are considered: the Polonyi model and the quantum corrected O'Raifeartaigh model. In the former case, both classes of racetrack inflation models differ significantly from the corresponding models with non-supersymmetric uplifting. The main difference is a quite strong dominance of the inflaton by the matter field. In addition, fine-tuning of the parameters is relaxed as compared to the original racetrack models. In the case of the racetrack inflation models coupled to the O'Raifeartaigh model, the matter field is approximately decoupled from the inflationary dynamics.

Primary author

Marcin Badziak (University of Warsaw)

Co-author

Marek Olechowski (University of Warsaw)

Presentation materials