Hadronische und leptonische Zerfälle von schweren langlebigen Neutrinos in Sherpa

The event generator SHERPA is used a lot in high energy particle physics. This is partially because it is easy to implement and simulate beyond standard model physics by using UFO models. This bachelor thesis extends the HADRONS++ module to make it able to decay majorana neutrinos. To accomplish this the relevant currents are modified such that SHERPA can correctly calculate the decay widths of all the decay channels. These can be used to make the decay table. Finally a sanity check is performed using the already implemented $\tau$ decays and the functionality of the vertex offset is verified.