Search for a Dark Matter-Induced Annual Modulation Signal in NaI(Tl) with the COSINE-100 Experiment.

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ID: 4560
2019
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Abstract
We present new constraints on the dark matter-induced annual modulation signal using 1.7 years of COSINE-100 data with a total exposure of 97.7 kg yr. The COSINE-100 experiment, consisting of 106 kg of NaI(Tl) target material, is designed to carry out a model-independent test of DAMA/LIBRA's claim of WIMP discovery by searching for the same annual modulation signal using the same NaI(Tl) target. The crystal data show a 2.7  cpd/kg/keV background rate on average in the 2-6 keV energy region of interest. Using a χ-squared minimization method we observe best fit values for modulation amplitude and phase of 0.0092±0.0067  cpd/kg/keV and 127.2±45.9  d, respectively.
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adhikari2019searchphysical Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors G Adhikari, P Adhikari, E Barbosa de Souza, N Carlin, S Choi, M Djamal, A C Ezeribe, C Ha, I S Hahn, E J Jeon, J H Jo, H W Joo, W G Kang, W Kang, M Kauer, G S Kim, H Kim, H J Kim, K W Kim, N Y Kim, S K Kim, Y D Kim, Y H Kim, Y J Ko, V A Kudryavtsev, H S Lee, J Lee, J Y Lee, M H Lee, D S Leonard, W A Lynch, R H Maruyama, F Mouton, S L Olsen, B J Park, H K Park, H S Park, K S Park, R L C Pitta, H Prihtiadi, S J Ra, C Rott, K A Shin, A Scarff, N J C Spooner, W G Thompson, L Yang, G H Yu
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Journal physical review letters
Year 2019
DOI
10.1103/PhysRevLett.123.031302
URL
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