Chiral four-dimensional string compactifications with intersecting D-branes

TL;DR

This paper reviews the construction of chiral four-dimensional string models using intersecting D6-branes, highlighting their potential to replicate Standard Model features and discussing supersymmetric versus non-supersymmetric approaches.

Contribution

It provides a comprehensive overview of intersecting D-brane models for realistic string compactifications, including their phenomenological implications and model-building strategies.

Findings

Models can produce non-abelian gauge groups with chiral fermions

Comparison of supersymmetric and non-supersymmetric model advantages

Discussion of phenomenological properties relevant to Standard Model

Abstract

We review the construction of chiral four-dimensional compactifications of type IIA string theory with intersecting D6-branes. Such models lead to four-dimensional theories with non-abelian gauge interactions and charged chiral fermions. We discuss the application of these techniques to building of models with spectrum as close as possible to the Standard Model, and review their main phenomenological properties. We also emphasize the advantages/disadvantages of carrying out this idea using supersymmetric of non-supersymmetric models.