Mühlleitner, Margarete - Supersymmetry at the LHC

Despite its enormous success the Standard Model (SM) of particle physics cannot resolve certain problems like e.g. the hierarchy problem nor provide a Dark Matter candidate. Therefore extensions beyond the SM have been proposed among which supersymmetry (SUSY) is one of the most popular and most elaborated new physics extensions. In this talk SUSY particle production and the importance of higher order corrections will be discussed. Furthermore, the search for the light stop and the phenomenological implications of an exact treatment of the decay rates will be investigated. Finally, as an example of SUSY Higgs sectors, the one of the Next-Minimal SUSY Extension (NMSSM) will be presented. In view of the absence of any direct sign of New Physics the precise investigation of the Higgs sector with respect to New Physics effects will play a crucial role.