12,000

We have over 12,000 students, from over 100 countries, within one of the safest campuses in the UK

93%

93% of Lancaster students go into work or further study within six months of graduating

Home > Research > Publications & Outputs > The curvaton scenario in the MSSM and predictio...

## The curvaton scenario in the MSSM and predictions for non-Gaussianity

Research output: Contribution to journalJournal article

Published

Article number 111302 13/03/2012 Physical Review Letters 11 108 4 English

### Abstract

We provide a model in which both the inflaton and the curvaton are obtained from within the minimal supersymmetric Standard Model, with known gauge and Yukawa interactions. Since now both the inflaton and curvaton fields are successfully embedded within the same sector, their decay products thermalize very quickly before the electroweak scale. This results in two important features of the model: firstly, there will be no residual isocurvature perturbations, and secondly, observable non-Gaussianities can be generated with the non-Gaussianity parameter $f_\mathrm{NL}\sim {\cal O}(5-1000)$ being determined solely by the combination of weak-scale physics and the Standard Model Yukawas.

### Bibliographic note

4 pages, no figures © 2012 American Physical Society