Soft Supersymmetry-breaking terms and the \mu problem

TL;DR

This paper reviews how Supergravity and Superstring theories generate soft supersymmetry-breaking terms, addresses the  problem, and discusses solutions and their implications for low-energy supersymmetric spectra.

Contribution

It provides a comprehensive analysis of soft SUSY-breaking terms from Supergravity and Superstring theories, including solutions to the  problem and their low-energy phenomenological consequences.

Findings

Computed soft terms from Superstring theories.

Discussed solutions to the  problem within Superstrings.

Derived characteristic low-energy supersymmetric spectra.

Abstract

The connection between Supergravity and the low-energy world is analyzed. In particular, the soft Supersymmetry-breaking terms arising in Supergravity, the $\mu$ problem and various solutions proposed to solve it are reviewed. The soft terms arising in Supergravity theories coming from Superstring theory are also computed and the solutions proposed to solve the $\mu$ problem, which are naturally present in Superstrings, are also discussed. The $B$ soft terms associated are given for the different solutions. Finally, the low-energy Supersymmetric-spectra, which are very characteristic, are obtained.