Speaker
Vincenzo Branchina
Description
The EW vacuum lifetime is extremely sensitive to unknown (although necessarily present) high energy new physics. The latter can enormously lower the EW vacuum lifetime, posing a serious problem for the stability of our universe. After presenting the general issue of vacuum stability, and the reasons why new physics can be so highly destabilizing, I will discuss symmetries, physical models, as well as model-independent effects, that can provide the stabilization mechanism protecting our universe from decaying.
