Gravity and the explicit breaking of global symmetries: from theoretical aspects to phenomenological applications.
by
Alfredo Urbano
(CERN)
→
Europe/Madrid
IFAE Seminar room (IFAE)
IFAE Seminar room
IFAE
Description
What does gravity do with global symmetries? The common lore — supported by a number of “folk” theorems — is that gravity breaks explicitly all global symmetries. In this talk, I will show that the explicit breaking induced by gravity can be computed already in the context of General Relativity. Furthermore, I will discuss possible phenomenological applications, focusing on the case of the QCD axion and, more generally, on axion-like particles.