Physics Beyond the Standard Model

Based on current experimental and observational results, we develop and analyse hypothetical new physics models that attempt to solve the shortcomings of the Standard Model of particle physics. We focus on models that explain the light neutrino masses we observe in nature. Neutrinos are an all present yet highly elusive part of the Universe. Most importantly, we do not know how they acquire their tiny yet non-zero masses, and how this is connected to the Higgs mechanism in the Standard Model (if at all).

In this context, neutrinos currently provide the only solid departure from what is considered the Standard Model and an explanation of their properties forms a crucial part in our aim to understand the fundamental structure of nature. We devise novel theories that attempt to provide such explanations and we calculate their phenomenological predictions to be tested experimentally. Lepton flavour and number violating processes such as double beta decay, probing the possible Majorana nature of neutrinos, as well searches for sterile neutrinos are especially important in this.

For more information, contact Prof. Frank Deppisch