Gauge and Matter Condensates in Realistic String Models

Abstract

We examine the inter-relationship of the superpotential containing hidden and observable matter fields and the ensuing condensates in free fermionic string models. These gauge and matter condensates of the strongly interacting hidden gauge groups play a crucial role in the determination of the physical parameters of the observable sector. Supplementing the above information with the requirement of modular invariance, we find that a generic model with only trilinear superpotential allows for a degenerate (and sometimes pathological) set of vacua. This degeneracy may be lifted by higher order terms in the superpotential. We also point out some other subtle points that may arise in calculations of this nature. We exemplify our observations by computing explicitly the modular invariant gaugino and matter condensates in the flipped SU(5) string model with hidden gauge group $SO(10)\times SU(4)$.

11 pages (7 if reduced)

Cited by in corpus (14)

• Target Space Duality in String Theory
• Supersymmetry Breaking and Determination of the Unification Gauge Coupling Constant in String Theories
• The Search for a realistic flipped SU(5) string model
• The Simplest, String-Derivable, Supergravity Model and its Experimental Predictions
• A String Model with $SU(4)\times O(4)\times [Sp(4){]}_{Hidden}$ Gauge Symmetry
• Flavor changing neutral current constraints on standard-like orbifold models
• Moduli and Kähler potential in fermionic strings
• Supersymmetry: From the Fermi Scale to the Planck Scale
• Particle physics and cosmology of the string derived no-scale flipped $SU(5)$
• Modular invariance and nonrenormalizable interactions
• Unification Scale in String Theory
• Free Fermionic Constructions of Heterotic Strings
• Phenomenological implications from moduli fields in strings
• Running neutrino masses and mixing in a SU(4) x SU(2)^2 x U(1)_X model