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Related Experiment Video

Updated: May 18, 2026

Setting Limits on Supersymmetry Using Simplified Models

Setting Limits on Supersymmetry Using Simplified Models

Published on: November 15, 2013

Asymmetric Higgsino dark matter.

Kfir Blum¹, Aielet Efrati, Yuval Grossman

¹Institute for Advanced Study, Princeton, New Jersey 08540, USA. kblum@ias.edu

Physical Review Letters

|September 26, 2012

Summary

In supersymmetry, Higgsinos could explain dark matter. This framework links dark matter abundance to baryon asymmetry, potentially solving why their densities are similar.

Area of Science:

Particle Physics
Cosmology
Astrophysics

Background:

The observed baryon asymmetry suggests a corresponding asymmetry in Higgsinos within supersymmetric theories.
Dark matter remains a significant mystery in cosmology, with its abundance and properties not fully understood.

Purpose of the Study:

To investigate Higgsino as a viable candidate for asymmetric dark matter.
To explore if supersymmetry can simultaneously explain dark matter abundance and its relation to baryon asymmetry.

Main Methods:

Analysis within the supersymmetric framework, focusing on the electroweak phase transition.
Consideration of specific particle spectra where only Higgsinos are at the electroweak scale.

Main Results:

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Last Updated: May 18, 2026

Setting Limits on Supersymmetry Using Simplified Models

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Published on: November 15, 2013

Digital Inline Holographic Microscopy (DIHM) of Weakly-scattering Subjects

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Published on: February 8, 2014

Quantifying Cytoskeleton Dynamics Using Differential Dynamic Microscopy

Quantifying Cytoskeleton Dynamics Using Differential Dynamic Microscopy

Published on: June 15, 2022

Higgsino is found to be a viable asymmetric dark matter candidate.
Supersymmetry can account for the observed dark matter abundance and link it to baryon asymmetry.
The similarity between baryonic and dark matter mass densities can be explained.

Conclusions:

A specific supersymmetric scenario, requiring heavy gauginos, squarks, and sleptons, with a low-temperature electroweak phase transition (1-10 GeV), supports Higgsino dark matter.
This scenario necessitates extensions to the minimal supersymmetric standard model.
While explaining dark matter and baryon asymmetry, this model does not resolve the fine-tuning problem in supersymmetry.