Flavour in supersymmetry: horizontal symmetries or wave function renormalisation
arXiv:1007.5208 · doi:10.1007/JHEP12(2010)015
Abstract
We compare theoretical and experimental predictions of two main classes of models addressing fermion mass hierarchies and flavour changing neutral currents (FCNC) effects in supersymmetry: Froggatt-Nielsen (FN) U(1) gauged flavour models and Nelson-Strassler/extra dimensional models with hierarchical wave functions for the families. We show that whereas the two lead to identical predictions in the fermion mass matrices, the second class generates a stronger suppression of FCNC effects. We prove that, whereas at first sight the FN setup is more constrained due to anomaly cancelation conditions, imposing unification of gauge couplings in the second setup generates conditions which precisely match the mixed anomaly constraints in the FN setup. Finally, we provide an economical extra dimensional realisation of the hierarchical wave functions scenario in which the leptonic FCNC can be efficiently suppressed due to the strong coupling (CFT) origin of the electron mass.
23 pages
References in corpus (57)
- A Large Mass Hierarchy from a Small Extra Dimension
- Big Bang Nucleosynthesis (in "The Review of Particle Properties" 2004)
- Minimal Flavour Violation: an effective field theory approach
- A complete analysis of FCNC and CP constraints in general SUSY extensions of the standard model
- R-parity violating supersymmetry
- Bulk Fields and Supersymmetry in a Slice of AdS
- Flavor Structure of Warped Extra Dimension Models
- Fermion Masses, Mixings and Proton Decay in a Randall-Sundrum Model
- Mass Matrix Models: The Sequel
- Mass Matrix Models
- GUTs and Exceptional Branes in F-theory - II: Experimental Predictions
- Should Squarks Be Degenerate?
- Predictions From A U(2) Flavour Symmetry In Supersymmetric Theories
- Flavor violation and warped geometry
- Flavor Physics in the Randall-Sundrum Model: I. Theoretical Setup and Electroweak Precision Tests
- Anatomy and Phenomenology of FCNC and CPV Effects in SUSY Theories
- Yukawa Textures and Anomalies
- Predictions from an Anomalous U(1) Model of Yukawa Hierarchies
- Field Dependent Gauge Couplings in Locally Supersymmetric Effective Quantum Field Theories
- Fermion Masses and Mixing Angles from SU(3) Family Symmetry
- B-factory Signals for a Warped Extra Dimension
- Fermion Masses and Mixing Angles from SU(3) Family Symmetry and Unification
- Yukawa matrices from a spontaneously broken abelian symmetry
- Yukawa textures with an anomalous horizontal abelian symmetry
- Consequences of a U(2) Flavour Symmetry
- A Model of Lepton Masses from a Warped Extra Dimension
- Grand Unified Theories without the Desert
- Flavor Hierarchy From F-theory
- Gauge Unification, Yukawa Hierarchy and the Problem
- Soft scalar masses in supergravity with horizontal U(1)_X gauge symmetry
- Yukawa Structure from U(1) Fluxes in F-theory Grand Unification
- A GIM Mechanism from Extra Dimensions
- Suppressing Flavor Anarchy
- Abelian Flavour Symmetries in Supersymmetric Models
- On hypercharge flux and exotics in F-theory GUTs
- Froggatt-Nielsen models from E8 in F-theory GUTs
- A Simple Flavor Protection for RS
- Warped Supersymmetric Grand Unification
- Yukawa Couplings in F-theory and Non-Commutative Geometry
- Top Compositeness and Precision Unification
- Solving the flavour problem with hierarchical fermion wave functions
- A Common Origin for Neutrino Anarchy and Charged Hierarchies
- Exact Results for Supersymmetric Renormalization and the Supersymmetric Flavor Problem
- Family symmetries in F-theory GUTs
- Soft Scalar Masses in String Models with Anomalous symmetry
- Constraints on non-universal soft terms from flavor changing neutral currents
- Aspects of Flavour and Supersymmetry in F-theory GUTs
- A Gravity Dual and LHC Study of Single-Sector Supersymmetry Breaking
- Sfermion masses in Nelson-Strassler type of models: SUSY standard models coupled with SCFTs
- Update on Fermion Mass Models with an Anomalous Horizontal U(1) Symmetry
- Holographic Grand Unification
- Supersymmetry Breaking in Warped Geometry
- Beyond MFV in family symmetry theories of fermion masses
- Flavorful Supersymmetry from Higher Dimensions
- Superconformal Flavor Simplified
- Inverted Sparticle Hierarchies from Natural Particle Hierarchies
- SUSY Flavor Problem and Warped Geometry
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- Bounds on 4D Conformal and Superconformal Field Theories
- Carving Out the Space of 4D CFTs
- On Partial Compositeness and the CP asymmetry in charm decays
- Pieces of the Flavour Puzzle
- Flavourful Production at Hadron Colliders
- Lepton Flavor Violation in Flavored Gauge Mediation
- Gauge Mediation beyond Minimal Flavor Violation
- Universal contributions to scalar masses from five dimensional supergravity
- Warped Alternatives to Froggatt-Nielsen Models
- Realistic GUT Yukawa Couplings from a Random Clockwork Model
- The supersymmetric flavour problem in 5D GUTs and its consequences for LHC phenomenology
- Flavorful hybrid anomaly-gravity mediation
- Revisiting neutrino masses from Planck scale operators
- Flavour Theory and the LHC Era
- Looking for lepton flavour violation in supersymmetry at the LHC
- The SUSY flavor problem in 5D GUTs
- Warped Parity Violation