Feasibility of one loop inflation in the light of CMB

TL;DR

This paper investigates one-loop inflation models derived from superstring theory, examining their consistency with CMB data and deriving constraints on Yukawa couplings relevant for supersymmetric inflation and dark matter formation.

Contribution

It provides a novel analysis of one-loop inflation within superstring theory, linking Yukawa couplings to observable CMB parameters and offering new constraints for supersymmetric inflation models.

Findings

Yukawa coupling constraints compatible with CMB data

Tensor-to-scalar ratio consistent with recent observations

Potential implications for dark matter and dark energy formation

Abstract

The one loop inflation stemming from the superstring theory and associated Yukawa coupling arising from supersymmetric interactions is examined with CMB. The Yukawa coupling can exist beyond standard model particle physics sector. The tensor to scalar ratio of the loop inflation is found consistent with the recent CMB results for the Yukawa coupling from cosmology. The newly derived constraint on the Yukawa coupling constant may play a crucial role in validating inflationary model originating from supersymmetry and may shed some light on the formation of dark matter or dark energy. The outcomes of the study may be helpful in the phenomenological realisation of string theory.