MSLED: A Minimal Supersymmetric Large Extra Dimensions Scenario

Abstract

We propose a framework for the low-energy realization of supersymmetry which is very predictive, but differs radically in its phenomenological implications from the supersymmetric Standard Model (minimal or otherwise). The proposal consists of a supersymmetric version of the Large-Extra-Dimensions scenario, with the Standard Model living on a 3-brane, coupled to a bulk sector consisting of six-dimensional supergravity. This picture is motivated by a promising recent attempt (hep-th/0304256) to naturally understand the observed dark energy density, and this connection with dark energy prevents making the extra dimensions smaller than of order 5 $\mu$m. The resulting inability to change this size makes the model very predictive, and easily falsifiable within the near future. Being supersymmetric, it may plausibly be embedded into a more fundamental theory such as string theory, in which case an additional 4 compact dimensions may also be present having inverse radii at the TeV scale or higher. The model is close to, but consistent with, current experimental constraints. We outline possible phenomenological implications for particle physics (both at accelerators and elsewhere), for precision tests of gravity, for astrophysics and for cosmology.

34 pages, added references

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Cited by in corpus (54)

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• On the onset of cosmological backreaction
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• Codimension-two branes in six-dimensional supergravity and the cosmological constant problem
• Cosmic Black-Hole Hair Growth and Quasar OJ287
• Exact Black Holes and Gravitational Shockwaves on Codimension-2 Branes
• UV Caps and Modulus Stabilization for 6D Gauged Chiral Supergravity
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• Casimir Energies for 6D Supergravities Compactified on T_2/Z_N with Wilson Lines
• Ultraviolet Sensitivity in Higher Dimensions
• Effective Field Theories and Matching for Codimension-2 Branes
• Large Dimensions and Small Curvatures from Supersymmetric Brane Back-reaction
• Kicking the Rugby Ball: Perturbations of 6D Gauged Chiral Supergravity
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• The Effective Field Theory of Codimension-two Branes
• Brane Induced Gravity: Codimension-2
• Cosmological constant and late transient acceleration of the universe in the Horava-Witten Heterotic M-Theory on S^{1}/Z_{2}
• The Hierarchy Problem and the Self-Localized Higgs
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• Bulk Stabilization, the Extra-Dimensional Higgs Portal and Missing Energy in Higgs Events
• Accidental SUSY: Enhanced Bulk Supersymmetry from Brane Back-reaction
• Dark Energy, Scalar-Tensor Gravity and Large Extra Dimensions
• Rotating Black Holes on Codimension-2 Branes
• Three- and Four-point correlators of excited bosonic twist fields
• Footballs, Conical Singularities and the Liouville Equation
• Who's Afraid of the Supersymmetric Dark? The Standard Model vs Low-Energy Supergravity
• Light Axiodilatons: Matter Couplings, Weak-Scale Completions and Long-Distance Tests of Gravity
• MFV Reductions of MSSM Parameter Space
• Two Micron-Size Dark Dimensions
• A New Dimension Hidden in the Shadow of a Wall
• Technical Naturalness on a Codimension-2 Brane
• Distributed SUSY Breaking: Dark Energy, Newton's Law and the LHC
• Auto-Concealment of Supersymmetry in Extra Dimensions
• Revisiting light stringy states in view of the 750 GeV diphoton excess
• The cosmological constant in the brane world of string theory on $S^1/Z_2$
• Sculpting the Extra Dimensions: Inflation from Codimension-2 Brane Back-reaction
• Late transient acceleration of the universe in string theory on $S^1/Z_2$
• Aspects of Physics with Two Extra Dimensions
• Brane cosmology in the Horava-Witten heterotic M-Theory on $S^1/Z_2$
• Yukawa's of light stringy states
• Gravitational Forces on a Codimension-2 Brane
• The hierarchy problem, radion mass, localization of gravity and 4D effective Newtonian potential in string theory on $S^1/Z_2$
• Production of light stringy states
• Technically Natural Vacuum Energy at the Tip of a Supersymmetric Teardrop
• Colliding branes and formation of spacetime singularities in string theory
• Supersymmetric Large Extra Dimensions and the Cosmological Constant Problem
• Searching for a Dark Dimension Right-handed Neutrino in KATRIN
• Orbifold Branes in the $M_D\times M_{d^{+}}\times M_{d^{-}}$ Compactification of type II string on $S^1/Z_2$ and their cosmological applications
• Smooth tensionful higher-codimensional brane worlds with bulk and brane form fields
• Lifetimes of light stringy states
• Probing new physics through B->K l+ l- decays in R-parity violating minimal supersymmetric standard model