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Lowering the energy threshold in COSINE-100 dark matter searches
- Title
- Lowering the energy threshold in COSINE-100 dark matter searches
- Authors
- Adhikari, G.; de Souza, E. Barbosa; Carlin, N.; Choi, J. J.; Choi, S.; Djamal, M.; Ezeribe, A. C.; Franca, L. E.; Ha, C.; Hahn, I. S.; Jeon, E. J.; Jo, J. H.; Kang, W. G.; Kauer, M.; Kim, H.; Kim, H. J.; Kim, K. W.; Kim, S. K.; Kim, Y. D.; Kim, Y. H.; Ko, Y. J.; Lee, E. K.; Lee, H. S.; Lee, J.; Lee, J. Y.; Lee, M. H.; Lee, S. H.; Leonard, D. S.; Manzato, B. B.; Maruyama, R. H.; Neal, R. J.; Olsen, S. L.; Park, B. J.; Park, H. K.; Park, H. S.; Park, K. S.; Pitta, R. L. C.; Prihtiadi, H.; Ra, S. J.; Rott, C.; Shin, K. A.; Scarff, A.; Spooner, N. J. C.; Thompson, W. G.; Yang, L.; Yu, G. H.
- Ewha Authors
- 한인식
- SCOPUS Author ID
- 한인식
- Issue Date
- 2021
- Journal Title
- ASTROPARTICLE PHYSICS
- ISSN
- 0927-6505
1873-2852
- Citation
- ASTROPARTICLE PHYSICS vol. 130
- Keywords
- COSINE-100; Dark matter; Low threshold; NaI(Tl)
- Publisher
- ELSEVIER
- Indexed
- SCIE; SCOPUS
- Document Type
- Article
- Abstract
- COSINE-100 is a dark matter detection experiment that uses NaI(Tl) crystal detectors operating at the Yangyang underground laboratory in Korea since September 2016. Its main goal is to test the annual modulation observed by the DAMA/LIBRA experiment with the same target medium. Recently DAMA/LIBRA has released data with an energy threshold lowered to 1 keV, and the persistent annual modulation behavior is still observed at 9.5 sigma. By lowering the energy threshold for electron recoils to 1 keV, COSINE-100 annual modulation results can be compared to those of DAMA/LIBRA in a model-independent way. Additionally, the event selection methods provide an access to a few to sub-GeV dark matter particles using constant rate studies. In this article, we discuss the COSINE-100 event selection algorithm, its validation, and efficiencies near the threshold. (C) 2021 Elsevier B.V. All rights reserved.
- DOI
- 10.1016/j.astropartphys.2021.102581
- Appears in Collections:
- 사범대학 > 과학교육과 > Journal papers
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