Natural Supersymmetry and Unification in Five Dimensions

Abstract

We explore unification and natural supersymmetry in a five dimensional extension of the standard model in which the extra dimension may be large, of the order of 1-10 TeV. Power law running generates a TeV scale A_ term allowing for the observed 125 GeV Higgs and allowing for stop masses below 2 TeV, compatible with a natural SUSY spectrum. We supply the full one-loop RGEs for various models and use metastability to give a prediction that the gluino mass should be lighter than 3.5 TeV for A_t <= 2.5 TeV, for such a compactification scale, with brane localised 3rd generation matter. We discuss why models in which the 1st and 2nd generation of matter fields are located in the bulk are likely to be ruled out. We also look at electroweak symmetry breaking in these models.

34 pages, 12 figures

References in corpus (8)

• Automatic Calculation of supersymmetric Renormalization Group Equations and Self Energies
• SARAH 3.2: Dirac Gauginos, UFO output, and more
• En-gauging Naturalness
• Light third-generation squarks from flavour gauge messengers
• A phenomenological study of 5d supersymmetry
• Large $A_t$ Without the Desert
• Natural Supersymmetry and Dynamical Flavour with Metastable Vacua
• Confronting Higgs couplings from D-term extensions and Natural SUSY at the LHC and ILC