Stability, enhanced gauge symmetry and suppressed cosmological constant in 9D heterotic interpolating models

Abstract

We investigate the structure of the moduli space of 9D heterotic interpolating models with a complete set of Wilson line backgrounds and a radius parameter by computing the one-loop partition functions and the cosmological constants and by deriving the massless spectra, paying attention to the region $a\approx 0$ where supersymmetry is asymptotically restoring. We find some special planes and points in the moduli space where the gauge symmetry is enhanced and/or massless fermions appear. The gauge symmetry is maximally enhanced at the minima of the one-loop effective potential where the cosmological constant is negative.

34pages, 2nd version, minor changes made and references added, acknowledgments added

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Cited by in corpus (6)

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• Geometry of orientifold vacua and supersymmetry breaking
• Satisfiability Modulo Theories and Chiral Heterotic String Vacua with Positive Cosmological Constant
• Gauge Symmetry Enhancement by Wilson Lines in Twisted Compactification
• Effective Matrix Model for Gauge Theories at Finite Temperature and Density using Quantum Computing