Little Conformal Symmetry and Neutral Naturalness

September 25, 2017
3:00pm to 4:00pm

IFT Seminar Room/Red Room

Theoretical Physicists non-specialists
Speaker: 
Rachel Houtz
Institution: 
IFT
Location&Place: 

IFT Seminar Room/Red Room

Abstract: 
Given the lack of conventional SUSY signals in the LHC data, a more complicated story may be required to explain weak scale physics. I will present a class of natural models which ensure the one-loop divergences in the Higgs mass are cancelled. The top partners are not related by an internal symmetry of the Lagrangian, but instead the symmetry relation that ensures the cancellation arises at an infrared fixed point. Such a cancellation mechanism can, a la Little Higgs models, push the scale of the new physics that completely solves the hierarchy problem up to 5-10 TeV. When embedded in a supersymmetric model, the superpartner masses provide the cutoffs for the loops, and the mechanism alleviates the stop mass dependence on the Higgs mass parameter.