Orateur
Sergio Sevillano Muñoz
(University of Pennsylvania)
Description
Scalar–tensor theories provide a theoretically motivated extension of gravity that includes an additional scalar degree of freedom non‑minimally coupled to the gravitational sector. Their consistency with local tests of gravity is possible mainly due to screening mechanisms, which dynamically suppress scalar interactions in high-density environments. In this talk, I will develop a field‑theoretic description of these theories and show that they naturally map to Beyond Standard Model physics. This allows us to place bounds on scalar-tensor theories by using particle phenomenology.