IIHE topical seminar: Natural SUSY and the 125.5 GeV Higgs

by Dr Moritz McGarrie (University of the Witwatersrand)

Friday 4 Jul 2014, 14:00 → 15:00 Europe/Brussels

1G003 (VUB)

In the context of SUSY a 125.5 GeV Higgs requires either supra-TeV stops, a TeV scale A_t or a significant enhancement of the tree level Higgs mass. Even if such solutions are adopted, collider exclusions of ~1.5TeV on 1st and 2nd generation squarks, if applied universally, indicate a heavy sparticle spectrum for all squarks, out of reach of the LHC. In this talk we explore two approaches that can still allow for discoverable Natural SUSY at the LHC, addressing both the Higgs mass and a non-universal sparticle spectrum allowing for light stops. In the first model we explore flavour gauge mediation with metastable SUSY breaking (ISS) to generate light stops and explain the flavour structure. In the second model we use five dimensional RGEs to generate a Large A_t providing the Higgs mass and localising 3rd generation squarks away from supersymmetry breaking in an extra dimensions to generate light stops.

Slides VUB.pdf