COSINE-100 full dataset challenges the annual modulation signal of DAMA/LIBRA

Carlin, Nelson; Cho, Jae Young; Choi, Jae Jin; Choi, Seonho; Ezeribe, Anthony C.; Franca, Luis Eduardo; Ha, Chang Hyon; Hahn, In Sik; Hollick, Sophia J.; Jeon, Eunju; Joo, Han Wool; Kang, Woon Gu; Kauer, Matthew; Kim, Bongho; Kim, Hongjoo; Kim, Jinyoung; Kim, Kyungwon; Kim, Sunghyun; Kim, Sun Kee; Kim, Won Kyung; Kim, Yeongduk; Kim, Yong-Hamb; Ko, Young Ju; Lee, Doohyeok; Lee, 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, Yujin; Leonard, Douglas S.; Luan, Nguyen Thanh; de Almeida Machado, Vitor Hugo; Manzato, Bruno B.; Maruyama, Reina H.; Neal, Robert J.; Olsen, Stephen L.; Park, Byung Ju; Park, Hyang Kyu; Park, Hyeonseo; Park, Jong-Chul; Park, Kangsoon; Park, Se Dong; Pitta, Ricardo L. C.; Prihtiadi, Hafizh; Ra, Sejin; Rott, Carsten; Shin, Keon Ah; Cavalcante, David F. F. S.; Son, Min Ki; Spooner, Neil J. C.; Truc, Lam Tan; Yang, Liang; Yu, Gyun Ho

doi:10.1126/sciadv.adv6503

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COSINE-100 full dataset challenges the annual modulation signal of DAMA/LIBRA

Carlin, Nelson;
Cho, Jae Young;
Choi, Jae Jin;
Choi, Seonho;
Ezeribe, Anthony C.;
... Park, Hyang Kyu;
외 53명

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초록

For over 25 years, the DAMA/LIBRA collaboration has claimed to observe an annual modulation signal, suggesting the existence of dark matter interactions. However, no experiment using different target materials has observed a dark matter signal consistent with their result. To address this puzzle, the COSINE-100 collaboration conducted a model-independent test using sodium iodide crystal detectors, the same target material as DAMA/LIBRA. Analyzing data collected over 6.4 years by the effective mass of 61.3 kilograms, with improved energy calibration and time-dependent background modeling, we found no evidence of an annual modulation signal, challenging the DAMA/LIBRA result with a confidence level greater than 3 sigma. This finding represents a substantial step toward resolving the long-standing debate surrounding DAMA/LIBRA's dark matter claim, indicating that the observed modulation is unlikely to be caused by dark matter interactions.

키워드

Dark Matter; Information Systems; Iodine Compounds; Signal Modulation; Annual Modulations; Dark Matter; Effective Mass; Energy Calibration; Energy-time; Model Independent; Modulation Signals; Sodium Iodides; Target Materials; Time Dependent; Sodium Iodide; WIMP SEARCH

제목: COSINE-100 full dataset challenges the annual modulation signal of DAMA/LIBRA

저자: Carlin, Nelson; Cho, Jae Young; Choi, Jae Jin; Choi, Seonho; Ezeribe, Anthony C.; Franca, Luis Eduardo; Ha, Chang Hyon; Hahn, In Sik; Hollick, Sophia J.; Jeon, Eunju; Joo, Han Wool; Kang, Woon Gu; Kauer, Matthew; Kim, Bongho; Kim, Hongjoo; Kim, Jinyoung; Kim, Kyungwon; Kim, Sunghyun; Kim, Sun Kee; Kim, Won Kyung; Kim, Yeongduk; Kim, Yong-Hamb; Ko, Young Ju; Lee, Doohyeok; Lee, 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, Yujin; Leonard, Douglas S.; Luan, Nguyen Thanh; de Almeida Machado, Vitor Hugo; Manzato, Bruno B.; Maruyama, Reina H.; Neal, Robert J.; Olsen, Stephen L.; Park, Byung Ju; Park, Hyang Kyu; Park, Hyeonseo; Park, Jong-Chul; Park, Kangsoon; Park, Se Dong; Pitta, Ricardo L. C.; Prihtiadi, Hafizh; Ra, Sejin; Rott, Carsten; Shin, Keon Ah; Cavalcante, David F. F. S.; Son, Min Ki; Spooner, Neil J. C.; Truc, Lam Tan; Yang, Liang; Yu, Gyun Ho

DOI: 10.1126/sciadv.adv6503

발행일: 2025-09-03

유형: Article

저널명: Science Advances

권: 11

호: 36