PoS - Proceedings of Science
Volume 441 - XVIII International Conference on Topics in Astroparticle and Underground Physics (TAUP2023) - Dark Matter and its Detection
Earth-Scattering Induced Modulation in Low-Threshold Dark Matter Experiments
X. Bertou*, T. Emken, R. Essig, T. Volansky and T.T. Yu
Full text: pdf
Pre-published on: February 07, 2024
Published on: March 22, 2024
Abstract
In recent years, the threshold of Dark Matter search experiments has been lowered, enabling the search for Dark Matter-electron scattering. In the region of interest for mass and cross-section that current experiments can reach, the propagation of particles from the Dark Matter wind through the Earth can produce a (sideral) daily modulation in the observed signal. We explore the modulation signal expected in different materials and show how a significant improvement in the current sensitivity can be obtained in the lower mass region by searching for that daily modulation. Depending on the mediator, mass, and cross-section of interest, we study the dependence of the sensitivity on the latitude of the experiment.
DOI: https://doi.org/10.22323/1.441.0084
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