Destabilizing the gaugino condensate in modular invariant supergravity

TL;DR

This paper examines the stability of gaugino condensates in a supergravity model inspired by heterotic string theory, revealing conditions under which the condensate destabilizes, affecting supersymmetry-breaking mechanisms.

Contribution

It provides a detailed analysis of Planck-suppressed corrections and identifies conditions leading to condensate destabilization in a modular invariant supergravity framework.

Findings

Condensate destabilizes near special moduli points and at large compactification radius.

Planck-suppressed corrections significantly impact the condensate stability.

Implications for T-modulus dependence of supersymmetry-breaking are discussed.

Abstract

We investigate the stability of the hidden sector gaugino condensate in a SL(2,Z)-invariant supergravity model inspired by the E8*E8 heterotic string, using the chiral superfield formalism. We calculate the Planck-suppressed corrections to the ``truncated approximation'' for the condensate value and the scalar potential. A transition to a phase with zero condensate occurs near special points in moduli space and at large compactification radius. We discuss the implications for the T-modulus dependence of supersymmetry-breaking.