Fourth level MSSM inflation from new flat directions

TL;DR

This paper introduces a minimal supersymmetric extension-based inflation model using MSSM flat directions, deriving potential parameters, fitting observational data, and exploring primordial black hole formation and collider phenomenology.

Contribution

It constructs a novel inflation model from MSSM flat directions at the fourth level and analyzes its observational and phenomenological implications.

Findings

Model fits WMAP7 data well

Potential for primordial black hole formation

Predicts collider-accessible phenomenological parameters

Abstract

We propose a model of inflation driven by minimal extension of SUSY, commonly known as MSSM. Starting from gauge invariant flat directions in the n = 4 level comprising of QQQL,QuQd,QuLe and uude, we construct the inflaton potential and employ it to investigate for its consequences around the saddle point arising from the non-vanishing fourth derivative of the original potential. To this end, we derive the expressions for the important parameters in MSSM inflation using the loop corrected potential. We further estimate the observable parameters and find them to fit well with recent observational data from WMAP7 by using the code CAMB. We also explore the possibility of primordial black hole formation from our model. Finally, we analyze one loop RGE and compute different phenomenological parameters which could be precisely determined in LHC or future Linear Colliders.