On Puzzle Pieces of SUSY Flavour Models

by Vinzenz Maurer (Basel)

Friday 16 Mar 2012, 11:00 → 12:00 Europe/Paris

theory group, room 149 (LPSC)

If supersymmetry (SUSY) will be discovered, successful models of flavour not only have to provide an explanation of the flavour structure of the Standard Model fermions, but also of the flavour structure of their scalar superpartners. In this talk, we discuss two ways to find hints on the correct model to resolve this flavour puzzle. One is the more model dependent top-down approach. Within an example class of models it will be shown show how taking into account SUSY-specific corrections such as 1-loop threshold corrections can lead to constraints/predictions for the sparticle spectrum to be found at the LHC. In addition, flavour models in SUSY can be tested by predictions for flavour and CP violating effects. Another approach to obtain hints on the correct flavour model is to study how well the hierarchy problem is resolved in a given scenario. To this end, the current status of the little hierarchy problem in the constrained MSSM is reviewed and the fine-tuning price of GUT scale Yukawa coupling relations is investigated in a bottom-up analysis.