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Related Experiment Video

Updated: May 16, 2026

Setting Limits on Supersymmetry Using Simplified Models

Setting Limits on Supersymmetry Using Simplified Models

Published on: November 15, 2013

Radiative natural supersymmetry with a 125 GeV Higgs boson.

Howard Baer¹, Vernon Barger, Peisi Huang

¹Department of Physics and Astronomy, University of Oklahoma, Norman,Oklahoma 73019, USA.

Physical Review Letters

|December 11, 2012

Summary

Low electroweak fine-tuning (EWFT) with natural supersymmetry (SUSY) can be achieved with multi-TeV sparticles. Radiative effects allow heavier third-generation squarks and a light Higgs boson.

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Area of Science:

High Energy Physics
Particle Physics
Supersymmetry

Background:

Low electroweak fine-tuning (EWFT) and solutions to supersymmetry (SUSY) flavor/CP problems suggest specific sparticle mass spectra.
Natural SUSY typically implies light Higgsinos, sub-TeV third-generation scalars, and multi-TeV first/second generation scalars.

Purpose of the Study:

To investigate if natural SUSY spectra can be generated radiatively from heavier sparticles.
To explore the impact of multi-TeV scalars and trilinear soft breaking terms on EWFT.
To determine if heavier third-generation squarks are compatible with low EWFT.

Main Methods:

Utilizing renormalization group running effects to generate sparticle spectra.
Calculating EWFT using the complete 1-loop effective potential.
Analyzing the influence of large negative trilinear terms and top squark masses.

Main Results:

Natural SUSY spectra can be radiatively generated starting from multi-TeV first/second and third generation scalars.
Significantly heavier third-generation squarks are permissible even with low EWFT.
A light Higgs scalar (~125 GeV) is achievable with large negative trilinear terms and heavier top squarks.

Conclusions:

The framework allows for natural SUSY with potentially heavier sparticles than previously assumed.
Radiative effects play a crucial role in generating the desired mass spectrum.
This approach reconciles low EWFT with heavier sparticles and a light Higgs.