Special Seminar: The Enduring Importance of the Weak Scale

by Riccardo Rattazzi (EPFL - Ecole Polytechnique Federale Lausanne (CH))

Thursday 18 Sept 2025, 11:30 → 12:30 Europe/Zurich

I will review the essence of the Electroweak Hierarchy Paradox, which consists  in the tension between Naturalness to Simplicity.

I will  focus on the Composite Higgs scenario illustrating how 
the tension plays out and emphasizing the importance of the next generation of flavor measurements.

I will then sketch a scenario where supersymmetry and compositeness are combined. That way the tension is reduced, offering at the same time a qualitative dynamical explanation for the observed structure of fermion masses and mixings.