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Limits on WIMP dark matter with NaI(Tl) crystals in three years of COSINE-100 data

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Main Authors:	Yu, G. H., Carlin, N., Cho, J. Y., Choi, J. J., Choi, S., Ezeribe, A. C., Franca, L. E., Ha, C., Hahn, I. S., Hollick, S. J., Jeon, E. J., Joo, H. W., Kang, W. G., Kauer, M., Kim, B. H., Kim, H. J., Kim, J., Kim, K. W., Kim, S. H., Kim, S. K., Kim, W. K., Kim, Y. D., Kim, Y. H., Ko, Y. J., Lee, D. H., Lee, E. K., Lee, H., Lee, H. S., Lee, H. Y., Lee, I. S., Lee, J., Lee, J. Y., Lee, M. H., Lee, S. H., Lee, S. M., Lee, Y. J., Leonard, D. S., Luan, N. T., Machado, V. H. A., Manzato, B. B., Maruyama, R. H., Neal, R. J., Olsen, S. L., Park, B. J., Park, H. K., Park, H. S., Park, J. C., Park, K. S., Park, S. D., Pitta, R. L. C., Prihtiadi, H., Ra, S. J., Rott, C., Shin, K. A., Cavalcante, D. F. F. S., Son, M. K., Spooner, N. J. C., Truc, L. T., Yang, L.
Format:	Preprint
Published:	2025
Subjects:	High Energy Physics - Experiment
Online Access:	Acceder al recurso
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_version_	1866912665422528512
author	Yu, G. H. Carlin, N. Cho, J. Y. Choi, J. J. Choi, S. Ezeribe, A. C. Franca, L. E. Ha, C. Hahn, I. S. Hollick, S. J. Jeon, E. J. Joo, H. W. Kang, W. G. Kauer, M. Kim, B. H. Kim, H. J. Kim, J. Kim, K. W. Kim, S. H. Kim, S. K. Kim, W. K. Kim, Y. D. Kim, Y. H. Ko, Y. J. Lee, D. H. Lee, E. K. Lee, H. Lee, H. S. Lee, H. Y. Lee, I. S. Lee, J. Lee, J. Y. Lee, M. H. Lee, S. H. Lee, S. M. Lee, Y. J. Leonard, D. S. Luan, N. T. Machado, V. H. A. Manzato, B. B. Maruyama, R. H. Neal, R. J. Olsen, S. L. Park, B. J. Park, H. K. Park, H. S. Park, J. C. Park, K. S. Park, S. D. Pitta, R. L. C. Prihtiadi, H. Ra, S. J. Rott, C. Shin, K. A. Cavalcante, D. F. F. S. Son, M. K. Spooner, N. J. C. Truc, L. T. Yang, L.
author_facet	Yu, G. H. Carlin, N. Cho, J. Y. Choi, J. J. Choi, S. Ezeribe, A. C. Franca, L. E. Ha, C. Hahn, I. S. Hollick, S. J. Jeon, E. J. Joo, H. W. Kang, W. G. Kauer, M. Kim, B. H. Kim, H. J. Kim, J. Kim, K. W. Kim, S. H. Kim, S. K. Kim, W. K. Kim, Y. D. Kim, Y. H. Ko, Y. J. Lee, D. H. Lee, E. K. Lee, H. Lee, H. S. Lee, H. Y. Lee, I. S. Lee, J. Lee, J. Y. Lee, M. H. Lee, S. H. Lee, S. M. Lee, Y. J. Leonard, D. S. Luan, N. T. Machado, V. H. A. Manzato, B. B. Maruyama, R. H. Neal, R. J. Olsen, S. L. Park, B. J. Park, H. K. Park, H. S. Park, J. C. Park, K. S. Park, S. D. Pitta, R. L. C. Prihtiadi, H. Ra, S. J. Rott, C. Shin, K. A. Cavalcante, D. F. F. S. Son, M. K. Spooner, N. J. C. Truc, L. T. Yang, L.
contents	We report limits on WIMP dark matter derived from three years of data collected by the COSINE-100 experiment with NaI(Tl) crystals, achieving an improved energy threshold of 0.7 keV. This lowered threshold enhances sensitivity in the sub-GeV mass range, extending the reach for direct detection of low-mass dark matter. Although no excess of WIMP-like events was observed, the increased sensitivity enabled a model-insensitive comparison between the expected WIMP signal rate-based on mass limits from our data-and DAMA's reported modulation amplitude. Our findings strongly disfavor the DAMA signal as originating from WIMP interactions, fully excluding DAMA/LIBRA 3$σ$ allowed regions and providing enhanced WIMP mass limits by an order of magnitude in the spin-independent model compared to previous results. In the spin-dependent model, cross-section upper limits were obtained in the mass range [0.1-5.0] GeV/c$^2$, with additional sensitivity to sub-GeV WIMPs through the inclusion of the Migdal effect. These results represent substantial progress in low-mass dark matter exploration and reinforce constraints on the longstanding DAMA claim.
format	Preprint
id	arxiv_https___arxiv_org_abs_2501_13665
institution	arXiv
publishDate	2025
record_format	arxiv
spellingShingle	Limits on WIMP dark matter with NaI(Tl) crystals in three years of COSINE-100 data Yu, G. H. Carlin, N. Cho, J. Y. Choi, J. J. Choi, S. Ezeribe, A. C. Franca, L. E. Ha, C. Hahn, I. S. Hollick, S. J. Jeon, E. J. Joo, H. W. Kang, W. G. Kauer, M. Kim, B. H. Kim, H. J. Kim, J. Kim, K. W. Kim, S. H. Kim, S. K. Kim, W. K. Kim, Y. D. Kim, Y. H. Ko, Y. J. Lee, D. H. Lee, E. K. Lee, H. Lee, H. S. Lee, H. Y. Lee, I. S. Lee, J. Lee, J. Y. Lee, M. H. Lee, S. H. Lee, S. M. Lee, Y. J. Leonard, D. S. Luan, N. T. Machado, V. H. A. Manzato, B. B. Maruyama, R. H. Neal, R. J. Olsen, S. L. Park, B. J. Park, H. K. Park, H. S. Park, J. C. Park, K. S. Park, S. D. Pitta, R. L. C. Prihtiadi, H. Ra, S. J. Rott, C. Shin, K. A. Cavalcante, D. F. F. S. Son, M. K. Spooner, N. J. C. Truc, L. T. Yang, L. High Energy Physics - Experiment We report limits on WIMP dark matter derived from three years of data collected by the COSINE-100 experiment with NaI(Tl) crystals, achieving an improved energy threshold of 0.7 keV. This lowered threshold enhances sensitivity in the sub-GeV mass range, extending the reach for direct detection of low-mass dark matter. Although no excess of WIMP-like events was observed, the increased sensitivity enabled a model-insensitive comparison between the expected WIMP signal rate-based on mass limits from our data-and DAMA's reported modulation amplitude. Our findings strongly disfavor the DAMA signal as originating from WIMP interactions, fully excluding DAMA/LIBRA 3$σ$ allowed regions and providing enhanced WIMP mass limits by an order of magnitude in the spin-independent model compared to previous results. In the spin-dependent model, cross-section upper limits were obtained in the mass range [0.1-5.0] GeV/c$^2$, with additional sensitivity to sub-GeV WIMPs through the inclusion of the Migdal effect. These results represent substantial progress in low-mass dark matter exploration and reinforce constraints on the longstanding DAMA claim.
title	Limits on WIMP dark matter with NaI(Tl) crystals in three years of COSINE-100 data
topic	High Energy Physics - Experiment
url	https://arxiv.org/abs/2501.13665