Anisotropic ionization threshold and directional sensitivity in solid state DM detectors

Forskningsoutput: Kapitel i bok/rapport/konferenshandlingKonferensbidragVetenskapligPeer review


The threshold displacement energy for nuclear recoils depends strongly on the direction of the recoiling nucleus with respect to the crystal lattice. Assuming that similar dependence holds for the ionization threshold for low energy nuclear recoils, we explore the consequences of the resulting directional dependence of the observable event rate in ionization detectors. For low mass dark matter, this effect leads to a daily modulation in the event rate. We discuss how this effect can be utilized to separate the DM signal from the solar neutrino background and how the structure of the modulation signal can be used to identify the type of the DM-nucleon coupling.
Titel på värdpublikation14th International Conference on Identification of Dark Matter (IDM2022)
Antal sidor5
Utgivningsdatum3 juli 2023
StatusPublicerad - 3 juli 2023
MoE-publikationstypA4 Artikel i en konferenspublikation
Evenemang14th International Conference on Identification of Dark Matter - Technical University Vienna, Vienna, Österrike
Varaktighet: 18 juli 202222 juli 2022


NamnSciPost Physics Proceedings
FörlagThe SciPost Foundation
ISSN (elektroniskt)2666-4003


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