Phenomenological Consequences of the Refined Swampland Conjecture

TL;DR

This paper explores how refined swampland conjectures impose constraints on scalar potentials, affecting inflationary models and particle phenomenology, and provides bounds on the parameters c and c' in these conjectures.

Contribution

It analyzes phenomenological implications of the refined de Sitter swampland conjecture and derives bottom-up constraints on the parameters c and c' affecting inflationary models.

Findings

Constraints on scalar potential derivatives due to conjecture

Implications for inflationary model building

Bounds on parameters c and c'

Abstract

We discuss phenomenological consequences of the recently-introduced refinements of the de Sitter swampland conjecture. The conjecture constraints the first and the second derivatives of the scalar potential in terms of two $O(1)$ constants $c$ and $c'$, leading to interesting constraints on particle phenomenology, especially inflationary model building. Our work can also be regarded as bottom-up constraints on the values of $c$ and $c'$.