Flat Directions in Left-Right Symmetric String Derived Models

Abstract

The only string models known to reproduce the Minimal Supersymmetric Standard Model in the low energy effective field theory are those constructed in the free fermionic formulation. We demonstrate the existence of quasi-realistic free fermionic heterotic-string models in which supersymmetric singlet flat directions do not exist. This raises the possibility that supersymmetry is broken perturbatively in such models by the one-loop Fayet-Iliopoulos term. We show, however, that supersymmetric flat directions that utilize VEVs of some non-Abelian fields in the massless string spectrum do exist in the model. We argue that hidden sector condensates lift the flat directions and break supersymmetry hierarchically.

20 pages. Standard Latex. References added. To appear in PRD

References in corpus (1)

• Phenomenology of Non-Abelian Flat Directions in a Minimal Superstring Standard Model

Cited by in corpus (47)

• Classification of the chiral Z2XZ2 fermionic models in the heterotic superstring
• On the Number of Chiral Generations in Z2 X Z2 Orbifolds
• Z_2 x Z_2 Heterotic Orbifold Models of Non Factorisable Six Dimensional Toroidal Manifolds
• NAHE-based string models with SU(4) X SU(2) X U(1) SO(10) Subgroup
• Non-Tachyonic Semi-Realistic Non-Supersymmetric Heterotic String Vacua
• Minimal Standard Heterotic String Models
• Classification of Standard-like Heterotic-String Vacua
• Classification of Flipped SU(5) Heterotic-String Vacua
• The 750 GeV diphoton LHC excess and Extra Z's in Heterotic-String Derived Models
• Searching for Extra Z' from Strings and Other Models at the LHC with Leptoproduction
• String Derived Exophobic SU(6)xSU(2) GUTs
• CP Violation in Supersymmetric U(1)' Models
• Interpolations Among NAHE-based Supersymmetric and Nonsupersymmetric String Vacua
• A Novel String Derived Z' With Stable Proton, Light-Neutrinos and R-parity violation
• String Inspired Neutrino Mass Textures in Light of KamLAND and WMAP
• Moduli Fixing in Realistic String Vacua
• Quasi-realistic heterotic-string models with vanishing one-loop cosmological constant and perturbatively broken supersymmetry?
• Classification of Non-Supersymmetric Pati-Salam Heterotic String Models
• Towards the Classification of Tachyon-Free Models From Tachyonic Ten-Dimensional Heterotic String Vacua
• A Light Z' Heterotic-String Derived Model
• Extra $Z^{\prime }$s and $W^{\prime }$s in Heterotic--String Derived Models
• Stable Three Generation Standard--like Model From a Tachyonic Ten Dimensional Heterotic--String Vacuum
• Investigation of Quasi--Realistic Heterotic String Models with Reduced Higgs Spectrum
• Classification of Left-Right Symmetric Heterotic String Vacua
• On the Possibility of Optical Unification in Heterotic Strings
• Proton Stability and Light $Z^{\prime }$ Inspired by String Derived Models
• String Phenomenology From a Worldsheet Perspective
• Type $\bar{0}$ Heterotic String Orbifolds
• The Flipped SU(5) String Vacua Classification: A Variation Of The SO(10) Breaking Basis Vector
• Stringent Phenomenological Investigation into Heterotic String Optical Unification
• Classification of SU(4) X SU(2) X U(1) Heterotic-String Models
• Doublet-Triplet Splitting in Fertile Left-Right Symmetric Heterotic String Vacua
• Satisfiability Modulo Theories and Chiral Heterotic String Vacua with Positive Cosmological Constant
• Free Fermionic Heterotic Model Building and Root Systems
• The LHC di-photon excess and Gauge Coupling Unification in Extra $Z^{\prime }$ Heterotic-String Derived Models
• Note on a NAHE Variation
• Type 0 ${\mathbb{Z}}_2\times {\mathbb{Z}}_2$ Heterotic String Orbifolds and Misaligned Supersymmetry
• Yukawa couplings in SO(10) heterotic M-theory vacua
• Leptophobic Z' in Heterotic-String Derived Models
• Towards Classification of $\mathcal{N}=1$ and $\mathcal{N}=0$ Flipped $SU(5)$ Asymmetric ${\mathbb{Z}}_2\times {\mathbb{Z}}_2$ Heterotic String Orbifolds
• Sterile Neutrinos in String Derived Models
• Systematic Investigations of the Free Fermionic Heterotic String Gauge Group Statistics: Layer 1 Results
• Initial Systematic Investigations of the Landscape of Low Layer NAHE Extensions
• Observable/Hidden Broken Symmetry for Symmetric Boundary Conditions
• Redundancies in Explicitly Constructed Ten Dimensional Heterotic String Models
• Classification of the Chiral Z_2 x Z_2 Heterotic String Models
• Gauge Models in D Dimensions