Vacuum stability of models with extended Higgs sectors

by Dr Eliel Camargo Molina (Lund U.)

Thursday 5 Feb 2015, 15:15 → 16:15 Europe/Stockholm

HUB (Institutionen för teoretisk fysik)

For models with extended Higgs sectors, minimizing the one-loop effective potential and calculating tunneling times between different minima can provide a competitive phenomenological constraint. In this talk we will discuss a method for finding the minima of the potential and tunneling times. As an example we will take a look at charge- and color- breaking minima in the MSSM both at zero and non-zero temperature and a quick glimpse at R-parity violation in the BL-SSM. We will see that when requiring compatibility with other phenomenological constraints, vacuum stability presents an even more challenging scenario for this models.