TASI Lectures on Extra Dimensions and Branes

TL;DR

This paper provides a comprehensive pedagogical overview of theories involving branes and extra dimensions, covering effective field theory construction, phenomenological implications, and warped extra dimension models like Randall-Sundrum.

Contribution

It offers a detailed introduction to extra-dimensional models, including new insights into warped geometries, brane constructions, and their phenomenological consequences.

Findings

Discussion of large extra dimensions and their phenomenology

Analysis of warped extra dimensions and Randall-Sundrum models

Exploration of phenomena like split fermions and KK modes

Abstract

This is a pedagogical introduction into theories with branes and extra dimensions. We first discuss the construction of such models from an effective field theory point of view, and then discuss large extra dimensions and some of their phenomenological consequences. Various possible phenomena (split fermions, mediation of supersymmetry breaking and orbifold breaking of symmetries) are discussed next. The second half of this review is entirely devoted to warped extra dimensions, including the construction of the Randall-Sundrum solution, intersecting branes, radius stabilization, KK phenomenology and bulk gauge bosons.