String Embeddings of the Pentagon

TL;DR

This paper explores how the Pentagon Model, a supersymmetric extension of the Standard Model with a new SU(5) gauge theory, can be embedded into various string theory frameworks.

Contribution

It provides explicit methods for embedding the Pentagon Model into string theory, including type IIa D-branes, M-theory G_2 compactifications, and heterotic orbifolds.

Findings

Successful embedding of the Pentagon Model into type IIa D-brane setups.

Embedding into M-theory G_2 holonomy compactifications.

Realization within heterotic orbifold constructions.

Abstract

The Pentagon Model is an explicit supersymmetric extension of the Standard Model, which involves a new strongly-interacting SU(5) gauge theory at TeV-scale energies. We discuss embeddings of the Pentagon Model into string theory, specifically N=1 supersymmetric type IIa intersecting D-brane models, M-theory compactifications of G_2 holonomy, and heterotic orbifold constructions.