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Strong constraints from COSINE-100 on the DAMA dark matter results using the same sodium iodide target
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We present new constraints on dark matter interactions using 1.7 years of COSINE-100 data. The COSINE-100 experiment, consisting of 106 kg of tallium-doped sodium iodide (NaI(Tl)) target material, is aimed at testing DAMA's claim of dark matter observation using the same NaI(Tl) detectors. Improved event selection requirements, a more precise understanding of the detector background and the use of a larger data set considerably enhances the COSINE-100 sensitivity for dark matter detection. No signal consistent with the dark matter interaction is identified, and rules out model-dependent dark matter interpretations of the DAMA signals in the specific context of standard halo model with the same NaI(Tl) target for various interaction hypotheses.
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Cited by 2 Pith papers
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DAMA/LIBRA and dark matter: decisive tension or contrived cancellation
DAMA's annual modulation signal is incompatible at >5σ with ANAIS-112 and COSINE-100 under physical dark-matter recoil models; reconciliation requires contrived opposite-sign sodium/iodine tuning.
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The CRESST experiment: towards the next-generation of sub-GeV direct dark matter detection
CRESST's projected 288-channel upgrade with gram-scale CaWO4 detectors could reach spin-independent dark matter cross sections near 10^-42 cm^2 at 1 GeV/c^2, if the low-energy excess is reduced by a factor of 10 to 100.
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