Strong constraints from COSINE-100 on the DAMA dark matter results using the same sodium iodide target

Govinda Adhikari, Estella B. de Souza, Nelson Carlin, Jae Jin Choi, Seonho Choi, Mitra Djamal, Anthony C. Ezeribe, Luis E. França, Chang Hyon Ha, In Sik Hahn, Eunju Jeon, Jay Hyun Jo, Han Wool Joo, Woon Gu Kang, Matthew Kauer, Hyounggyu Kim, Hongjoo Kim, Kyungwon Kim, Sunghyun Kim, Sun Kee KimWon Kyung Kim, Yeongduk Kim, Yong Hamb Kim, Young Ju Ko, Eun Kyung Lee, Hyunseok Lee, Hyun Su Lee, Hye Young Lee, In Soo Lee, Jaison Lee, Jooyoung Lee, Moo Hyun Lee, Seo Hyun Lee, Seung Mok Lee, Douglas Leonard, Bruno B. Manzato, Reina H. Maruyama, Robert J. Neal, Stephen L. Olsen, Byung Ju Park, Hyang Kyu Park, Hyeonseo Park, Kangsoon Park, Ricardo L.C. Pitta, Hafizh Prihtiadi, Sejin Ra, Carsten Rott, Keon Ah Shin, Andrew Scarff, Neil J.C. Spooner, William G. Thompson, Liang Yang, Gyun Ho Yu

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37 Scopus citations

Abstract

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.

Original languageEnglish
Article numbereabk2699
JournalScience advances
Volume7
Issue number46
DOIs
StatePublished - Nov 2021

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