TL;DR
This review explores how extra-dimensional geometries influence cosmological parameters and matter distribution, addressing fundamental issues like fine-tuning and hierarchy problems in modern physics.
Contribution
It provides a comprehensive analysis of the relationship between extra space metrics, matter distribution, and cosmological parameters, proposing solutions to key theoretical problems.
Findings
Matter distribution affects 4D observational parameters
Relations between extra space metrics and cosmological constants are established
Potential solutions to fine-tuning and hierarchy problems are discussed
Abstract
The extra space paradigm plays a significant role in modern physics and in cosmology as the specific case. In this review, the relation between the main cosmological parameters - Planck mass and Cosmological constants - and a metric of extra space is discussed. Matter distribution inside extra space and its effect on the 4-dimensional observational parameters is of particular interest. The ways to solve the Fine-tuning problem and the Hierarchy problem are analyzed.
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