Searches for the Supersymmetric Partner of the Top Quark, Dark Matter and Dark Energy at the ATLAS Experiment

Nicolas Köhler passed his undergraduate studies at the University of Konstanz, Germany, spending 5 months at Canada's national particle accelerator centre (TRIUMF) to write his Bachelor thesis. During his Masters studies at the Technical University of Munich, Germany, he specialised in experimental particle physics, completing both his Master and PhD theses at the Max Planck Institute for Physics. His doctoral degree, granted "with highest distinction" in August 2018, was recognised as being an outstanding contribution to the ATLAS collaboration in the context of a PhD thesis. At present, he is a fellow at the European Organisation for Nuclear Research (CERN).

• Introduction.- The theory of elementary particle physics.- The experimental setup.- Performance of muon reconstruction and identification.- Searches for new particles decaying into jets and missing transverse energy.- Summary.- Appendix.- Bibliography.