Speaker
Mr
Clemens Wieck
(DESY Hamburg)
Description
We study the effects of coupling hybrid inflation to moduli stabilization as employed in certain type IIB string compactifications with D-branes and fluxes. In a scenario with a single Kahler modulus stabilized in a racetrack potential, F-term hybrid inflation is unfeasible due to either a large inflaton mass or a tachyonic direction. However, we present a working model of D-term hybrid inflation with stabilized moduli. We discuss how the supersymmetric Minkowski vacuum at the end of inflation can be uplifted to a dS vacuum with TeV-scale gravitino mass without spoiling moduli stabilization or inflation. Moreover, we show that the considered model is equivalent to superconformal D-term inflation. The latter reproduces the Starobinsky model in the large-field regime, which makes it phenomenologically appealing in view of the recently published Planck data.
Primary authors
Mr
Clemens Wieck
(DESY Hamburg)
Dr
Valerie Domcke
(DESY Hamburg)
Prof.
Wilfried Buchmüller
(DESY Hamburg)
