Auriga simulations show the LMC induces azimuthal anisotropies in directional DM recoils that enhance discovery prospects relative to the Standard Halo Model.
Simulated Milky Way analogues: implications for dark matter direct searches
3 Pith papers cite this work. Polarity classification is still indexing.
abstract
We study the implications of galaxy formation on dark matter direct detection using high resolution hydrodynamic simulations of Milky Way-like galaxies simulated within the EAGLE and APOSTLE projects. We identify Milky Way analogues that satisfy observational constraints on the Milky Way rotation curve and total stellar mass. We then extract the dark matter density and velocity distribution in the Solar neighbourhood for this set of Milky Way analogues, and use them to analyse the results of current direct detection experiments. For most Milky Way analogues, the event rates in direct detection experiments obtained from the best fit Maxwellian distribution (with peak speed of 223 - 289 km/s) are similar to those obtained directly from the simulations. As a consequence, the allowed regions and exclusion limits set by direct detection experiments in the dark matter mass and spin-independent cross section plane shift by a few GeV compared to the Standard Halo Model, at low dark matter masses. For each dark matter mass, the halo-to-halo variation of the local dark matter density results in an overall shift of the allowed regions and exclusion limits for the cross section. However, the compatibility of the possible hints for a dark matter signal from DAMA and CDMS-Si and null results from LUX and SuperCDMS is not improved.
fields
hep-ph 3years
2026 3verdicts
UNVERDICTED 3representative citing papers
Astrophysical uncertainties in dark matter halo models produce O(1% to 100%) fractional deviations in predicted single-phonon rates, but can be captured by parameter variations within the Standard Halo Model after rms-matching.
Proposes muscovite mica paleodetector framework for heavy composite dark matter using Sedov-Taylor melt modeling validated by SRIM/TRIM, X-ray fluorescence readout, projected sensitivities, and critique of prior etched mica exclusions.
citing papers explorer
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Directional dark matter signatures of the Large Magellanic Cloud
Auriga simulations show the LMC induces azimuthal anisotropies in directional DM recoils that enhance discovery prospects relative to the Standard Halo Model.
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Astrophysical Uncertainties in Sub-GeV Dark Matter Detection via Single Phonon Excitations
Astrophysical uncertainties in dark matter halo models produce O(1% to 100%) fractional deviations in predicted single-phonon rates, but can be captured by parameter variations within the Standard Halo Model after rms-matching.
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New Windows on Heavy Dark Matter: Mineral Melt Modelling and X-Ray Readout for Muscovite Mica
Proposes muscovite mica paleodetector framework for heavy composite dark matter using Sedov-Taylor melt modeling validated by SRIM/TRIM, X-ray fluorescence readout, projected sensitivities, and critique of prior etched mica exclusions.