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Setting Limits on Supersymmetry Using Simplified Models
Published on: November 15, 2013
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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.
Physical Review Letters
|October 21, 2017
Summary
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.
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.
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