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Limiting Light Dark Matter with Luminous Hadronic Loops.

Physical review letters·2024

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Scattering And Absorption of Light in Planetary Regoliths

Scattering And Absorption of Light in Planetary Regoliths

Published on: July 1, 2019

Analytic Approach to Light Dark Matter Propagation.

Christopher V Cappiello¹

¹Department of Physics, Engineering Physics, and Astronomy, Queen's University, Kingston, Ontario, K7N 3N6, Canada; Arthur B. McDonald Canadian Astroparticle Physics Research Institute, Kingston, Ontario, K7L 3N6, Canada; and Perimeter Institute for Theoretical Physics, Waterloo, Ontario, N2L 2Y5, Canada.

Physical Review Letters

|June 16, 2023

Summary

This summary is machine-generated.

A new analytic approximation models light dark matter (DM) attenuation in Earth, improving computational speed for sub-GeV DM searches. This method refines constraints on subdominant dark matter interactions.

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Area of Science:

Particle Physics
Astrophysics
Computational Physics

Background:

Sub-GeV dark matter detection is challenging due to potential signal attenuation in Earth's matter.
Existing approximations for heavy dark matter are inadequate for light dark matter, requiring slow simulations.

Purpose of the Study:

To develop a faster, accurate analytic approximation for modeling light dark matter attenuation in Earth.
To reanalyze existing constraints on subdominant dark matter using the new method.

Main Methods:

Developed a novel analytic approximation for light dark matter attenuation.
Validated the approximation against Monte Carlo simulation results.
Applied the method to reevaluate constraints on subdominant dark matter.

Main Results:

The analytic approximation shows good agreement with Monte Carlo results.
The new method offers significant speed improvements for large cross-section scenarios.
Updated constraints on subdominant dark matter have been derived.

Conclusions:

The developed analytic approximation provides an efficient tool for studying light dark matter.
This method enhances the analysis of dark matter detection experiments and astrophysical constraints.