Speaker
Dr
Luca Di Luzio
(KIT)
Description
After reviewing the calculation of the Standard Model one-loop effective potential in a class of linear gauges, we discuss the physical observables entering the vacuum stability analysis. In particular, the field value at which the effective potential turns negative (the so-called instability scale, often associated with the physical threshold of the "new physics") is a gauge dependent quantity. Such a gauge ambiguity is explicitly shown in the case of the Standard Model.
Authors
Dr
Luca Di Luzio
(KIT)
Dr
Luminita Mihaila
(KIT)
