Apr 18 – 22, 2011
Palais des Papes, Avignon
Europe/Paris timezone

Inflection point inflation with MSSM Higgs fields

Apr 18, 2011, 5:45 PM
15m
Chambre du Trésorier (Palais des Papes, Avignon)

Chambre du Trésorier

Palais des Papes, Avignon

Speaker

Mr Arindam Chatterjee (University of Bonn)

Description

We demonstrate that in the simplest CP conserving scenario, the MSSM higgs fields can act as an inflaton, in the presence of a Planck suppressed non-renormalizable term in the superpotential. The inflation occurs around an inflection point which can match the current WMAP data. Since inflation occurs at a low scale, the moduli problem does not appear, and the supergravity corrections remain negligible. However, there is a fine tuning needed between the MSSM paramaters involved, at a high energy scale. We use the Suspect RGE code to show that, however, successful EWSB is possible over a large parameter space in spite of the fine tuning at a high scale, and also that the fine tuning at a high scale does not correspond to any fine tuning at the EWSB scale.

Primary authors

Dr Anupam Mazumdar (Lancaster Uiversity) Mr Arindam Chatterjee (University of Bonn)

Presentation materials