TASI 2011: Four Lectures on TeV Scale Extra Dimensions

TL;DR

This paper provides an introductory review of TeV-scale extra-dimensional models, discussing their theoretical foundations, phenomenological implications, and how they can address open questions in the Standard Model, with insights into holography.

Contribution

It offers a comprehensive, self-contained overview of extra-dimensional theories, emphasizing their power, limitations, and applications in particle physics.

Findings

Extra-dimensional models can address open questions in the Standard Model.

Theoretical tools for understanding extra dimensions are systematically presented.

Examples illustrate how extra dimensions influence phenomenology at the TeV scale.

Abstract

Compact spatial dimension at the TeV scale remain an intriguing possibility that is currently being tested at the LHC. We give an introductory review of extra-dimensional models and ideas, from a phenomenological perspective, but emphasizing the appropriate theoretical tools. We emphasize the power and limitations of such constructions, and give a self-contained account of the methods necessary to understand the associated physics. We also review a number of examples that illustrate how extra-dimensional ideas can shed light on open questions in the Standard Model. An introduction to holography is provided. These are the notes of my TASI 2011 Lectures on Extra Dimensions.