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Weak scale supersymmetry without weak scale supergravity.

Markus A Luty1

  • 1Department of Physics, University of Maryland, College Park, Maryland 20742, USA. mluty@physics.umd.edu

Physical Review Letters
|October 9, 2002
PubMed
Summary
This summary is machine-generated.

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This study presents a new framework for supersymmetry breaking, allowing for larger masses of the gravitino and moduli. This resolves cosmological issues in hidden sector models and is compatible with gauge coupling unification.

Area of Science:

  • Theoretical Physics
  • Particle Physics
  • Cosmology

Background:

  • Weak scale supersymmetry typically implies weak scale supergravity.
  • This leads to low masses for the gravitino and moduli (below 100 TeV).
  • This presents cosmological problems for hidden sector models.

Purpose of the Study:

  • To present a realistic framework for supersymmetry breaking.
  • To allow for significantly larger masses of the gravitino and moduli.
  • To resolve cosmological problems associated with hidden sector models.

Main Methods:

  • Proposing a framework for supersymmetry breaking.
  • Utilizing anomaly-mediated supersymmetry breaking to communicate with the visible sector.
  • Investigating compatibility with perturbative gauge coupling unification.

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Main Results:

  • Demonstrated a framework where gravitino and moduli masses can exceed 100 TeV.
  • Resolved cosmological problems in hidden sector models.
  • Showcased compatibility with perturbative gauge coupling unification.

Conclusions:

  • The proposed framework offers a solution to cosmological issues in supersymmetry breaking.
  • This framework can be realized in models with warped extra dimensions or strongly coupled 4D conformal field theories.
  • It provides a viable scenario for high-scale supergravity consistent with particle physics and cosmology.