Nuclear Production and Analytic Attenuation of Energetic MeV Solar Dark Matter

Shao-Feng Ge; Jie Sheng; Chen Xia; Chuan-Yang Xing

Nuclear Production and Analytic Attenuation of Energetic MeV Solar Dark Matter

High Energy Physics - Phenomenology 2025-12-09 v2 High Energy Astrophysical Phenomena High Energy Physics - Experiment

Authors: Shao-Feng Ge , Jie Sheng , Chen Xia , Chuan-Yang Xing

Abstract

We propose a solar production mechanism of MeV dark matter to overcome the energy threshold in direct detection experiments. In particular, the proton and deuteron fussion to ${}^3 \mathrm{He}$ of the $pp$ chain that produces energetic neutrino and gamma photon with 5.5 $\,$ MeV of energy release can also produce a pair of dark matter particles. Besides, we establish an analytical formalism of using the Boltzmann equation to study the solar attenuation effect on the produced dark matter flux. The projected sensitivity is illustrated with Argon target at the DarkSide-LowMass experiment.

Keywords

solar dark matter nuclear production boltzmann equation generalized pareto distribution darkside experiment argon target

Cite

@article{arxiv.2408.12448,
  title  = {Nuclear Production and Analytic Attenuation of Energetic MeV Solar Dark Matter},
  author = {Shao-Feng Ge and Jie Sheng and Chen Xia and Chuan-Yang Xing},
  journal= {arXiv preprint arXiv:2408.12448},
  year   = {2025}
}

Comments

11 pages, 5 figures. Reported at the Purple Mountain Dark Matter Seminar in December 2023: https://indico.ihep.ac.cn/event/20822/

Nuclear Production and Analytic Attenuation of Energetic MeV Solar Dark Matter

Abstract

Keywords

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