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The European Physical Journal C

, Volume 66, Issue 1–2, pp 215–259 | Cite as

Constraining SUSY models with Fittino using measurements before, with and beyond the LHC

  • Philip BechtleEmail author
  • Klaus Desch
  • Mathias Uhlenbrock
  • Peter Wienemann
Regular Article - Theoretical Physics

Abstract

We investigate the constraints on supersymmetry (SUSY) arising from available precision measurements using a global fit approach. When interpreted within minimal supergravity (mSUGRA), the data provide significant constraints on the masses of supersymmetric particles (sparticles), which are predicted to be light enough for an early discovery at the Large Hadron Collider (LHC). We provide predicted mass spectra including, for the first time, full uncertainty bands. The most stringent constraint is from the measurement of the anomalous magnetic moment of the muon. Using the results of these fits, we investigate to which precision mSUGRA and more general MSSM parameters can be measured by the LHC experiments with three different integrated luminosities for a parameter point which approximately lies in the region preferred by current data. The impact of the already available measurements on these precisions, when combined with LHC data, is also studied. We develop a method to treat ambiguities arising from different interpretations of the data within one model and provide a way to differentiate between values of different digital parameters of a model (e.g. sign (μ) within mSUGRA). Finally, we show how measurements at a linear collider with up to 1 TeV centre-of-mass energy will help to improve precision by an order of magnitude.

Keywords

Higgs Boson Large Hadron Collider Minimal Supersymmetric Standard Model High Energy Phys SUSY Breaking 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag / Società Italiana di Fisica 2010

Authors and Affiliations

  • Philip Bechtle
    • 1
    Email author
  • Klaus Desch
    • 2
  • Mathias Uhlenbrock
    • 2
  • Peter Wienemann
    • 2
  1. 1.Deutsches Elektronen-SynchrotronHamburgGermany
  2. 2.Physikalisches InstitutUniversität BonnBonnGermany

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