Constraints on Hidden Sector Gaugino Condensation

TL;DR

This paper explores how specific constraints on the observable sector of heterotic string models limit the possible configurations of the hidden sector responsible for gaugino condensation, impacting supersymmetry breaking and particle masses.

Contribution

It provides a detailed analysis of the restrictions on hidden sector configurations arising from phenomenological demands in string-inspired models.

Findings

Restrictions on hidden sector configurations derived from observable sector constraints

Implications for supersymmetry-breaking scale around 1 TeV

Predictions for superpartner masses above current experimental limits

Abstract

We study the phenomenology of a class of models describing modular invariant gaugino condensation in the hidden sector of a low-energy effective theory derived from the heterotic string. Placing simple demands on the resulting observable sector, such as a supersymmetry-breaking scale of approximately 1 TeV, a vacuum with properly broken electroweak symmetry, superpartner masses above current direct search limits, etc., results in significant restrictions on the possible configurations of the hidden sector.