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Search for Dark Matter with ATLAS : Using Events with a Highly Energetic Jet and Missing Transverse Momentum in Proton-Proton Collisions at √s = 8 TeV    / by Ruth Pöttgen

Von: Resource type: Ressourcentyp: Buch (Online)Buch (Online)Sprache: Englisch Reihen: Springer Theses, Recognizing Outstanding Ph.D. Research | SpringerLink BücherVerlag: [Cham] : Springer, 2016Beschreibung: Online-Ressource (XV, 322 p. 134 illus., 124 illus. in color, online resource)ISBN:
  • 9783319410456
Schlagwörter: Genre/Form: Andere physische Formen: 9783319410449 | Druckausg.: 978-3-319-41044-9 LOC-Klassifikation:
  • QC793-793.5 QC174.45-174.52
  • QC793-793.5
  • QC174.45-174.52
DOI: DOI: 10.1007/978-3-319-41045-6Online-Ressourcen: Zusammenfassung: Introduction -- Theory and Motivation -- The Standard Model of Particle Physics -- Dark Matter -- Proton-Proton Collisions -- Mono-Jet Events as Dark Matter Signature at Colliders -- Large Hadron Collider -- The ATLAS Experiment -- Operation of the Central Trigger during run-I -- Upgrade of the Central Trigger -- Analysis Strategy -- Data and Simulated Samples -- Physics Objects Definitions -- Event Selection -- Background Estimation -- Results and Interpretation -- Prospects with Future LHC Data Conclusion. .Zusammenfassung: This thesis describes in detail a search for weakly interacting massive particles as possible dark matter candidates, making use of so-called mono-jet events. It includes a detailed description of the run-1 system, important operational challenges, and the upgrade for run-2. The nature of dark matter, which accounts for roughly 25% of the energy-matter content of the universe, is one of the biggest open questions in fundamental science. The analysis is based on the full set of proton-proton collisions collected by the ATLAS experiment at the Large Hadron Collider at √s = 8 TeV. Special attention is given to the experimental challenges and analysis techniques, as well as the overall scientific context beyond particle physics. The results complement those of non-collider experiments and yield some of the strongest exclusion bounds on parameters of dark matter models by the end of the Large Hadron Collider run-1. Details of the upgrade of the ATLAS Central Trigger for run-2 are also included. .PPN: PPN: 1657737683Package identifier: Produktsigel: ZDB-2-SEB | ZDB-2-SXP | ZDB-2-PHA
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