Abstract:
What is the roadmap for the discovery of new physics in the
post-Higgs-observation era? The concept of naturalness can provide a
useful guiding principle, considering the interplay between new, heavy
physics and the electroweak scale. I will describe a new search for
natural models of supersymmetry from the ATLAS experiment via the
production of light top squarks. I will also discuss the impact of
precision top-quark measurements on future searches, highlighting a
recent measurement of quantum interference in top-quark production.