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 to test 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 dataset considerably enhance 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.
- Strong constraints from COSINE-100 on the DAMA dark matter results using the same sodium iodide target
- First result of annual modulation search has been published in Phys. Rev. Lett.
- First direct search of iBDM with COSINE-100 was published in Phys. Rev. Lett as an Editors’ suggestion (April/3th, 2019).
- First annual modulation search from COSINE-100
- COSINE-100 initial 59.9 days data indicate no dark-matter induced events, significantly challenging the DAMA claim