2007/10/25 by Philippe Brax, Ph Brax, Anne-Christine Davis +7 · 1 citation
Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #Pulsars and Gravitational Waves Research #hep-ph #hep-th
paper · pdf · doi:10.1088/1475-7516/2008/01/008
published as JCAP0801:008,2008 · 14 pages, 5 figures
arxiv created 2007/10/25 · openalex publication_date 2008/01/08 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/30
It is shown that racetrack inflation can be implemented in a moduli stabilization scenario with a supersymmetric uplifting D -term. The resulting model is completely described by an effective supergravity theory, in contrast to the original racetrack models. We study the inflationary dynamics and show that the gaugino condensates vary during inflation. The resulting spectral index is n s ≈0.95 as in the original racetrack inflation model. Hence extra fields do not appear to alter the predictions of the model. An equivalent, simplified model with just a single field is presented.