On the cosmological constant, the KK mass scale, and the cut-off dependence in the dark dimension scenario

TL;DR

This paper defends the dark dimension scenario by addressing recent criticisms, clarifying the relationship between the cosmological constant and Kaluza-Klein mass scale, and arguing against flawed claims questioning its validity.

Contribution

It clarifies the relation between the cosmological constant and KK scale in the dark dimension scenario and refutes recent criticisms claiming flaws in this framework.

Findings

The claims against the dark dimension scenario are flawed.

The relation between the cosmological constant and KK mass scale is consistent within this scenario.

The scenario remains a valid approach in theoretical physics.

Abstract

In this short note we comment on the relation between the cosmological and the Kaluza-Klein mass scale in the dark dimension scenario, also in view of some recent claims that would raise some doubts about the validity of this scenario. Here we argue that these claims have serious flaws and cannot be trusted.