Radiative corrections to scalar masses in de Sitter space

TL;DR

This paper calculates how quantum radiative effects influence the mass of a scalar field during inflation, showing mass preservation up to logarithmic divergences in a supersymmetric context, with implications for inflationary theories.

Contribution

It provides the first detailed analysis of radiative mass corrections for a scalar in de Sitter space within a supersymmetric framework, highlighting mass stability during inflation.

Findings

Mass remains stable up to logarithmic divergences in UV and IR regimes.

Radiative corrections do not significantly alter the scalar mass in the studied model.

Results have implications for the robustness of inflationary models against quantum corrections.

Abstract

We compute the radiative corrections to the mass of a test boson field in an inflating space-time. The calculations are carried out in case of a boson part of a supersymmetric chiral multiplet. We show that its mass is preserved up to logarithmic divergences both in ultraviolet and infrared domains. Consequences of these results for inflationary models are discussed.