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Summary of the ATLAS experiment’s sensitivity to supersymmetry after LHC Run 1 — interpreted in the phenomenological MSSM

  • The ATLAS collaboration
  • Aix-Marseille Université
  • University of Oklahoma
  • Academia Sinica - Institute of Physics
  • Azerbaijan National Academy of Sciences
  • University of Amsterdam
  • Michigan State University
  • University of Toronto
  • Tel Aviv University
  • Technion-Israel Institute of Technology
  • University of Oregon
  • Stockholm University
  • Oskar Klein Centre
  • National Institute for Nuclear Physics
  • Abdus Salam International Centre for Theoretical Physics
  • King's College London
  • AGH University of Krakow
  • Brookhaven National Laboratory
  • Northern Illinois University
  • Ludwig Maximilian University of Munich
  • Rutherford Appleton Laboratory
  • University of Liverpool
  • University of Belgrade
  • University of Göttingen
  • Laboratório de Instrumentação e Física Experimental de Partículas
  • University of Granada
  • Boston University
  • Joint Institute for Nuclear Research
  • University of Rome Tor Vergata
  • Lund University
  • P.N. Lebedev Physical Institute of the Russian Academy of Sciences
  • University of Bologna
  • University of Victoria BC
  • Université Grenoble Alpes
  • Instituto de Física La Plata
  • CERN
  • Horia Hulubei National Institute of Physics and Nuclear Engineering
  • National Technical University of Athens
  • The University of Chicago
  • Columbia University
  • University of Sussex
  • University of Birmingham

Research output: Contribution to journalArticlepeer-review

95 Scopus citations

Abstract

Abstract: A summary of the constraints from the ATLAS experiment on R-parity-conserving supersymmetry is presented. Results from 22 separate ATLAS searches are considered, each based on analysis of up to 20.3 fb−1 of proton-proton collision data at centre-of-mass energies of s=7$$ \sqrt{s}=7 $$ and 8 TeV at the Large Hadron Collider. The results are interpreted in the context of the 19-parameter phenomenological minimal supersymmetric standard model, in which the lightest supersymmetric particle is a neutralino, taking into account constraints from previous precision electroweak and flavour measurements as well as from dark matter related measurements. The results are presented in terms of constraints on supersymmetric particle masses and are compared to limits from simplified models. The impact of ATLAS searches on parameters such as the dark matter relic density, the couplings of the observed Higgs boson, and the degree of electroweak fine-tuning is also shown. Spectra for surviving supersymmetry model points with low fine-tunings are presented.[Figure not available: see fulltext.]

Original languageEnglish
Article number134
JournalJournal of High Energy Physics
Volume2015
Issue number10
DOIs
StatePublished - Oct 1 2015

Keywords

  • Hadron-Hadron Scattering

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