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.
@article{arxiv.2104.03537,
title = {Strong constraints from COSINE-100 on the DAMA dark matter results using the same sodium iodide target},
author = {G. Adhikari and E. Barbosa de Souza and N. Carlin and J. J. Choi and S. Choi and M. Djamal and A. C. Ezeribe and L. E. França and C. Ha and I. S. Hahn and E. J. Jeon and J. H. Jo and H. W. Joo and W. G. Kang and M. Kauer and H. Kim and H. J. Kim and K. W. Kim and S. H. Kim and S. K. Kim and W. K. Kim and Y. D. Kim and Y. H. Kim and Y. J. Ko and E. K. Lee and H. Lee and H. S. Lee and H. Y. Lee and I. S. Lee and J. Lee and J. Y. Lee and M. H. Lee and S. H. Lee and S. M. Lee and D. S. Leonard and B. B. Manzato and R. H. Maruyama and R. J. Neal and S. L. Olsen and B. J. Park and H. K. Park and H. S. Park and K. S. Park and R. L. C. Pitta and H. Prihtiadi and S. J. Ra and C. Rott and K. A. Shin and A. Scar and N. J. C. Spooner and W. G. Thompson and L. Yang and G. H. Yu},
journal= {arXiv preprint arXiv:2104.03537},
year = {2021}
}