Seminar P. Ortiz

Speaker: 
P. Ortiz
Affiliation: 
Leiden University
Title: 
Sgoldstino Inflation
Abstract: 

I will firstly introduce the subject of cosmological inflation. Next I will discuss the possibility that inflation is driven by the sgoldstino. Since the sgoldstino decouples from all other fields, it allows for a simple inflationary scenario which captures the full multifield dynamics within the two-field sgoldstino plane. The stability of all the other fields leads to constraints on the parent supergravity. I will discuss small field, large field and hybrid sgoldstino models. I will provide some examples and point out the usual fine-tuning issues arising in inflationary models embedded in supergravity.

Location: 
0511.0135
Date: 
Tuesday, April 3, 2012 - 14:00 - 15:00