03568nam 22006135 450 991015533220332120200704071851.0978331944453610.1007/978-3-319-44453-6(CKB)3710000000964695(DE-He213)978-3-319-44453-6(MiAaPQ)EBC4748057(PPN)197138535(EXLCZ)99371000000096469520161125d2017 u| 0engurnn|008mamaatxtrdacontentcrdamediacrrdacarrierSearching for Dark Matter with the ATLAS Detector /by Steven Schramm1st ed. 2017.Cham :Springer International Publishing :Imprint: Springer,2017.1 online resource (XXIII, 324 p. 145 illus., 135 illus. in color.) Springer Theses, Recognizing Outstanding Ph.D. Research,2190-50533-319-44452-2 3-319-44453-0 Includes bibliographical references.Introduction -- Contributions -- Theoretical Background and Motivation for Dark Matter -- The ATLAS Experiment -- ATLAS Reconstruction and Performance -- Jet Reconstruction and Performance -- The Mono-jet Analysis -- Mono-jet Dark Matter Interpretation -- Mono-jet Prospects at an Upgraded LHC -- Conclusions. .This thesis describes the search for Dark Matter at the LHC in the mono-jet plus missing transverse momentum final state, using the full dataset recorded in 2012 by the ATLAS Experiment. It is the first time that the number of jets is not explicitly restricted to one or two, thus increasing the sensitivity to new signals. Instead, a balance between the most energetic jet and the missing transverse momentum is required, thus selecting mono-jet-like final states. Collider searches for Dark Matter have typically used signal models employing effective field theories (EFTs), even when comparing to results from direct and indirect detection experiments, where the difference in energy scale renders many such comparisons invalid. The thesis features the first robust and comprehensive treatment of the validity of EFTs in collider searches, and provides a means by which the different classifications of Dark Matter experiments can be compared on a sound and fair basis.Springer Theses, Recognizing Outstanding Ph.D. Research,2190-5053Particles (Nuclear physics)Quantum field theoryCosmologyGravitationElementary Particles, Quantum Field Theoryhttps://scigraph.springernature.com/ontologies/product-market-codes/P23029Cosmologyhttps://scigraph.springernature.com/ontologies/product-market-codes/P22049Classical and Quantum Gravitation, Relativity Theoryhttps://scigraph.springernature.com/ontologies/product-market-codes/P19070Particles (Nuclear physics)Quantum field theory.Cosmology.Gravitation.Elementary Particles, Quantum Field Theory.Cosmology.Classical and Quantum Gravitation, Relativity Theory.530.072Schramm Stevenauthttp://id.loc.gov/vocabulary/relators/aut825015MiAaPQMiAaPQMiAaPQBOOK9910155332203321Searching for Dark Matter with the ATLAS Detector1835136UNINA