Orateur
Dr
Florian NORTIER
(CNRS/IN2P3 - IP2I Lyon)
Description
Light scalar fields are ubiquitous in theoretical (astro)particle physics and cosmology. From the perspective of effective field theories, these scalars encounter hierarchy problems unless their masses are protected by a symmetry. Non-standard UV completions involving non-localizable fields may introduce correlations between short and long distances, thereby generating a UV/IR mixing that could account for the existence of light scalars with little hierarchies. In this talk, I will present a concrete realization of this concept within the framework of self-completion by classicalization, a mechanism proposed fifteen years ago by Dvali et al.
Auteur
Dr
Florian NORTIER
(CNRS/IN2P3 - IP2I Lyon)
