In Search of the (Minimal Supersymmetric) Standard Model String

TL;DR

This paper reviews developments in string-derived Minimal Supersymmetric Standard Models, highlighting a specific model with three generations and comparing various string/brane constructions and their phenomenology.

Contribution

It summarizes the first string model matching MSSM with minimal matter content and compares multiple string/brane-derived MSSMs from different construction methods.

Findings

First string model with three generations and minimal Higgs content

Comparison of phenomenology across various string/brane models

Identification of different construction methods leading to MSSM-like models

Abstract

This paper summarizes several developments in string-derived (Minimal Supersymmetric) Standard Models. Part one reviews the first string model containing solely the three generations of the Minimal Supersymmetric Standard Model and a single pair of Higgs as the matter in the observable sector of the low energy effective field theory. This model was constructed by Cleaver, Faraggi, and Nanopoulos in the Z_2 x Z_2 free fermionic formulation of weak coupled heterotic strings. Part two examines a representative collection of string/brane-derived MSSMs that followed. These additional models were obtained from various construction methods, including weak coupled Z_6 heterotic orbifolds, strong coupled heterotic on elliptically fibered Calabi-Yau's, Type IIB orientifolds with magnetic charged branes, and Type IIA orientifolds with intersecting branes (duals of the Type IIB). Phenomenology of the models is compared. To appear in String Theory Research Progress, Ferenc N. Balogh, editor., (ISBN 978-1-60456-075-6), Nova Science Publishers, Inc.}