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Setting Limits on Supersymmetry Using Simplified Models
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R-Axion at Colliders.

Brando Bellazzini1,2, Alberto Mariotti3, Diego Redigolo4,5

  • 1Institut de Physique Théorique, Université Paris Saclay, CEA, CNRS, F-91191 Gif-sur-Yvette, France.

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|October 21, 2017
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Summary
This summary is machine-generated.

Researchers explored hidden sectors where supersymmetry and R-symmetry break, revealing the R-axion as a potential early sign of supersymmetry. New constraints on its decay constant are relevant for collider experiments.

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Area of Science:

  • High Energy Physics
  • Theoretical Physics
  • Particle Physics

Background:

  • Investigates generic hidden sectors with broken supersymmetry and approximate R-symmetry.
  • Focuses on the low-energy spectrum including the gravitino and R-axion.

Purpose of the Study:

  • Derive new model-independent constraints on the R-axion decay constant.
  • Explore the R-axion as a potential first observable sign of supersymmetry.

Main Methods:

  • Analysis of effective field theories for hidden sectors.
  • Derivation of constraints applicable to various collider experiments (hadron, lepton, B factories).

Main Results:

  • Established new constraints on the R-axion decay constant for masses from GeV to TeV.
  • Identified distinctive experimental signals for the R-axion.

Conclusions:

  • The R-axion could be the first experimental signature of supersymmetry.
  • Provides a new method to probe hidden sectors and motivates searches for axion-like particles.