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Updated: Jun 23, 2025

Setting Limits on Supersymmetry Using Simplified Models

Setting Limits on Supersymmetry Using Simplified Models

Published on: November 15, 2013

A Lower Bound on Dark Matter Mass.

Mustafa A Amin¹, Mehrdad Mirbabayi²

¹Department of Physics and Astronomy, Rice University, Houston, Texas 77005, USA.

Physical Review Letters

|June 15, 2024

Summary

This summary is machine-generated.

This study establishes a minimum dark matter mass of 10^{-19} eV, assuming production after inflation. Observations of density perturbations rule out lighter dark matter candidates.

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Area of Science:

Cosmology
Particle Physics

Background:

The nature of dark matter remains one of the most significant unsolved problems in cosmology.
Understanding dark matter's properties, such as its mass, is crucial for refining cosmological models.

Purpose of the Study:

To derive a lower bound on the mass of dark matter particles.
To explore the implications of dark matter production mechanisms on its observable properties.

Main Methods:

Utilizing observational data on density perturbations.
Analyzing the effects of free-streaming suppression and white-noise enhancement in cosmological structures.

Main Results:

A lower bound of approximately 10^{-19} eV is established for dark matter mass.
The findings are contingent on dark matter production occurring after inflation with a finite correlation length.

Conclusions:

The non-detection of specific observational signatures constrains dark matter properties.
This research provides critical insights into the viable mass range for dark matter.