Halo-Independent Dark Matter Electron Scattering Analysis with In-Medium Effects

Autor:	Chen, Muping, Gelmini, Graciela B., Takhistov, Volodymyr
Rok vydání:	2022
Předmět:	High Energy Physics - Phenomenology Astrophysics - Cosmology and Nongalactic Astrophysics High Energy Physics - Experiment
Druh dokumentu:	Working Paper
DOI:	10.1016/j.physletb.2023.137922
Popis:	Dark matter (DM)-electron scattering is a prime target of a number of direct DM detection experiments and constitutes a promising avenue for exploring interactions of DM in the sub-GeV mass-range, challenging to probe with nuclear recoils. We extend the recently proposed halo-independent analysis method for DM-electron scattering, which allows to infer the local DM halo properties without any additional assumptions about them, to include in-medium effects through dielectric functions of the target material. We show that in-medium effects could significantly affect halo-independent analysis response functions for germanium and silicon and thus are essential for proper inference of local DM halo characteristics from direct DM detection data. Comment: 9 pages, 5 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2209.10902 Zobrazit plný text záznamu View this record from Arxiv