Orateur
Félix BRUEMMER
(LUPM Montpellier)
Description
Scalar fields can be accidentally light if symmetries forbid their tree-level masses in the potential at the renormalizable level. We present some example models with small symmetry groups (typically SU(n) x U(1)) but with the scalars transforming in large representations. We discuss possible applications to generating natural hierarchies of scales in models with elementary scalars. In particular, we present a model of hybrid natural inflation where the inflaton potential is flat because it is an accidentally light scalar.
Auteur principal
Félix BRUEMMER
(LUPM Montpellier)
Co-auteurs
Giacomo Ferrante
(LUPM)
Michele FRIGERIO
({CNRS}UMR5221)
