Year: 2024
Type: article
Abstract: We investigate the incoherent regime of the fermionic dark matter absorption by nuclei using the relativistic Fermi gas model and nuclear form factors. With the momentum transfer being roughly equal to the dark matter mass m χ , the incoherent regime contributes significantly to the absorption process for m χ ≳ 100 MeV with a spin-independent operator and for even smaller mass with a spin-dependent one. We also compare the situations for various target nuclei ( Xe 131 , Ge 72 , Ar 40 , Ne 20 , and He 4 ) that are typically used in the dark matter direct detection. A heavier nucleus actually has the advantage of probing the incoherent scattering of the fermionic absorption dark matter. Observing both the coherent and incoherent contributions would be an important justification of the fermionic dark matter absorption. Published by the American Physical Society 2024
Authors: Shao-Feng Ge, Oleg Titov
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: hybrid
OpenAlex ID: W4402197192