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Setting Limits on Supersymmetry Using Simplified Models
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Paul Langacker1, Gil Paz, Lian-Tao Wang

  • 1School of Natural Sciences, Institute for Advanced Study, Einstein Drive, Princeton, New Jersey 08540, USA.

Physical Review Letters
|March 21, 2008
PubMed
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This summary is machine-generated.

This study introduces a new class of split supersymmetry models where supersymmetry breaking occurs via a U1

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Area of Science:

  • Particle Physics
  • Supersymmetry
  • Grand Unification Theories

Background:

  • Supersymmetry (SUSY) models address fundamental problems in the Standard Model.
  • Split supersymmetry offers a compelling framework with distinct mass scales.
  • The mu problem remains a significant challenge in SUSY model building.

Purpose of the Study:

  • To explore a class of split supersymmetry models.
  • To investigate supersymmetry breaking mediated by a U1' gauge interaction.
  • To address the mu problem within this framework.

Main Methods:

  • Analysis of models with U1' gauge mediation.
  • Examination of particle spectra and charges.
  • Development of five benchmark models.

Main Results:

  • Identification of a spectrum with heavy sfermions, Higgsinos, exotics, and Z' (10-100 TeV).
  • Prediction of light gauginos (100-1000 GeV), a light Higgs boson (~140 GeV), and a light singlino.
  • Analysis of implications for gluino lifetime, cold dark matter, and particle masses.

Conclusions:

  • The proposed U1' gauge mediation provides a natural realization of split supersymmetry.
  • The models offer testable predictions for future collider experiments.
  • Further investigation into dark matter candidates and cosmological implications is warranted.