03756nam 22006255 450 991034950920332120200704135641.03-030-25988-910.1007/978-3-030-25988-4(CKB)4100000009273703(DE-He213)978-3-030-25988-4(MiAaPQ)EBC5896864(PPN)258304669(EXLCZ)99410000000927370320190913d2019 u| 0engurnn|008mamaatxtrdacontentcrdamediacrrdacarrierSearches for the Supersymmetric Partner of the Top Quark, Dark Matter and Dark Energy at the ATLAS Experiment /by Nicolas Maximilian Köhler1st ed. 2019.Cham :Springer International Publishing :Imprint: Springer,2019.1 online resource (XIII, 263 p. 382 illus., 164 illus. in color.) Springer Theses, Recognizing Outstanding Ph.D. Research,2190-5053"Doctoral Thesis accepted by the Technical University of Munich, Munich, Germany"--Title page.3-030-25987-0 Includes bibliographical references.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.Astrophysical observations implying the existence of Dark Matter and Dark Energy, which are not described by the Standard Model (SM) of particle physics, have led to extensions of the SM predicting new particles that could be directly produced at the Large Hadron Collider (LHC) at CERN. Based on 2015 and 2016 ATLAS proton-proton collision data, this thesis presents searches for the supersymmetric partner of the top quark, for Dark Matter, and for DarkEnergy, in signatures with jets and missing transverse energy. Muon detection is key to some of the most important LHC physics results, including the discovery of the Higgs boson and the measurement of its properties. The efficiency with which muons can be detected with the ATLAS detector is measured using Z boson decays. The performance of high-precision Monitored Drift Tube muon chambers under background rates similar to the ones expected for the High Luminosity-LHC is studied.Springer Theses, Recognizing Outstanding Ph.D. Research,2190-5053Elementary particles (Physics)Quantum field theoryCosmologyMathematical physicsElementary Particles, Quantum Field Theoryhttps://scigraph.springernature.com/ontologies/product-market-codes/P23029Cosmologyhttps://scigraph.springernature.com/ontologies/product-market-codes/P22049Theoretical, Mathematical and Computational Physicshttps://scigraph.springernature.com/ontologies/product-market-codes/P19005Elementary particles (Physics).Quantum field theory.Cosmology.Mathematical physics.Elementary Particles, Quantum Field Theory.Cosmology.Theoretical, Mathematical and Computational Physics.539.72539.72167Köhler Nicolas Maximilianauthttp://id.loc.gov/vocabulary/relators/aut1061176MiAaPQMiAaPQMiAaPQBOOK9910349509203321Searches for the Supersymmetric Partner of the Top Quark, Dark Matter and Dark Energy at the ATLAS Experiment2517786UNINA