@article{10902/31354,
year = {2021},
url = {https://hdl.handle.net/10902/31354},
abstract = {Despite strong evidence for the existence of large amounts of dark matter (DM) in our Universe, there is
no direct indication of its presence in our own solar system. All estimates of the local DM density rely on
extrapolating results on much larger scales. We demonstrate for the first time the possibility of
simultaneously measuring the local DM density and interaction cross section with a direct detection
experiment. It relies on the assumption that incoming DM particles frequently scatter on terrestrial nuclei
prior to detection, inducing an additional time-dependence of the signal. We show that for sub-GeV DM,
with a large spin-independent DM-proton cross section, future direct detection experiments should be able
to reconstruct the local DM density with smaller than 50% uncertainty.},
organization = {R. C. and T. E. were supported by the Knut and Alice Wallenberg Foundation (PI, Jan Conrad). R. C. also acknowledges support from an individual research grant from the Swedish Research Council, No. 2018-05029.
B. J. K. would like to thank the Spanish Agencia Estatal de Investigación (AEI, MICIU) for the support to the Unidad de Excelencia María de Maeztu Instituto de Física de Cantabria, Reference No. MDM-2017-0765. Some of the computations were performed on resources provided by the Swedish National Infrastructure for Computing (SNIC) at NSC, as well as the Dutch national e-infrastructure with the support of SURF Cooperative. We would like to thank the Munich Institute for Astro and Particle Physics (MIAPP) where part of this work was developed. Finally, we acknowledge the use of the Python scientific computing packages NumPy [121] and SciPy [122], as well as the graphics environment Matplotlib [123].},
publisher = {American Physical Society},
publisher = {Physical Review D, 2021, 104, 083023},
title = {Measuring the local dark matter density in the laboratory},
author = {Kavanagh, Bradley James and Emken, Timon and Catena, Riccardo},
}