Implication of neutrino backgrounds on the reach of next generation dark matter direct detection experiments

By J. Billard, E. Figueroa-Feliciano, L. Strigari. 2013

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As direct dark matter experiments continue to increase in size, they will become sensitive to neutrinos from astrophysical sources. For experiments that do not have directional sensitivity, coherent neutrino scattering (CNS) from several sources represents an important background to understand, as it can almost perfectly mimic an authentic WIMP signal. Here we explore in detail the effect of neutrino backgrounds on the discovery potential of WIMPs over the entire mass range of 500 MeV to 10 TeV. We show that, given the theoretical and measured uncertainties on the neutrino backgrounds, direct detection experiments lose sensitivity to light (~10 GeV) and heavy (~100 GeV) WIMPs with a spin-independent cross section below 10^{-45} cm^2 and 10^{-49} cm^2, respectively.

Subfields: Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/890d6845b40cb8e4608af46af8f996a889bc041e

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Citations in the corpus

WIMP dark matter candidates and searches—current status and future prospects (2017, background): “The shaded area below the solid orange line on the bottom of the plot corresponds to the irreducible neutrino background [165].”
DARWIN: towards the ultimate dark matter detector (2016, background): “These will dominate the measured spectra at WIMP-nucleon cross sections around 10 cm(2) for WIMP masses above ∼10GeV/c(2) [35, 36, 48, 81, 109, 110].”
Lectures on Dark Matter Physics (2016, background): “8, coherent neutrino scattering becomes relevant and the experiments are no longer background-free [79].”
Neutrino non-standard interactions: A status report (2019, background): “[126] introduced the concept of neutrino discovery limit, also known as neutrino floor.”
Characterising dark matter searches at colliders and direct detection experiments: vector mediators (2014, neutral): “6 GeV, the projected limits from LZ (the successor to LUX) assuming an exposure of 10 ton-years [96], and the discovery reach when coherent neutrino scattering is taken into account [91].”
Toward (finally!) ruling out Z and Higgs mediated dark matter models (2016, background): “We consider events with nuclear recoil energies between 6 and 30 keV, where this lower limits was imposed in order to reduce the rate of neutrino-induced background events [32, 33].”
Projected WIMP sensitivity of the XENONnT dark matter experiment (2020, background): “Solar neutrino backgrounds (predominantly B and hep neutrinos [64]) limit the sensitivity to WIMPs with masses of a few GeV/c.”
Combination of searches for invisible decays of the Higgs boson using 139 fb−1 of proton-proton collision data at s=13 TeV collected with the ATLAS experiment (2023, neutral): “In summary, searches for invisible decays of the Higgs boson using 139 fb − 1 of pp collision data at √”
Dark matter models and direct detection (2019, background): “The shaded region indicates the approximate DM mass and cross section where the sensitivity starts to become limited by the irreducible background from eutrino coherent scattering [162].”
Physics reach of the XENON1T dark matter experiment. (2015, positive): “In a detector where it is not possible to measure the direction of the recoil track, this is an irreducible background because it is a single scatter NR, uniformly distributed in the active volume of the TPC, defining the ultimate limitation to WIMP direct detection experiments [56].”