The linear response theory approach to the sub-GeV dark matter in the Sun

In recent years, the importance of the electronic in-medium effect in the sub-GeV dark matter (DM) direct detection has been recognized and a coherent formulation of the DM-electron scattering based on the linear response theory has been well established in the literature. In this paper, we apply th...

Full description

Saved in:
Bibliographic Details
Published in:Journal of cosmology and astroparticle physics 2023-12, Vol.2023 (12), p.9
Main Authors: Liang, Zheng-Liang, Zhang, Ping
Format: Article
Language:English
Subjects:
Coherent scattering
Dark matter
dark matter detectors
dark matter theory
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In recent years, the importance of the electronic in-medium effect in the sub-GeV dark matter (DM) direct detection has been recognized and a coherent formulation of the DM-electron scattering based on the linear response theory has been well established in the literature. In this paper, we apply the formulation to the scattering between DM particles and solar medium, and it is found that the dynamic structure factor inherently incorporate the particle-particle scattering and in-medium effect. Using this tool and taking a benchmark model as an example, we demonstrate how the in-medium effect affects the scattering of DM particles in the Sun, in both the heavy and the light mediator limit. Formulae derived in this work lay the foundation for accurately calculating the spectra of solar-accelerated DM particles, which is of particular importance for the detection of DM particles via plasmon in semiconductor targets.
ISSN:1475-7516
1475-7516
DOI:10.1088/1475-7516/2023/12/009