Theory Seminars

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.
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