Comparison between DAMA/LIBRA and COSINE-100 in the light of quenching factors
- Authors
- Ko, Y. J.; Adhikari, G.; Adhikari, P.; de Souza, E. Barbosa; Carlin, N.; Choi, J. J.; Choi, S.; Djamal, M.; Ezeribe, A. C.; Ha, C.; Hahn, I. S.; Jeon, E. J.; Jo, J. H.; Kang, W. G.; Kauer, M.; Kim, G. S.; Kim, H.; Kim, H. J.; Kim, K. W.; Kim, N. Y.; Kim, S. K.; Kim, Y. D.; Kim, Y. H.; Lee, E. K.; Lee, H. S.; Lee, J.; Lee, J. Y.; Lee, M. H.; Lee, S. H.; Leonard, D. S.; Lynch, W. A.; 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.; Yango, L.; Yui, G. H.
- Issue Date
- 11월-2019
- Publisher
- IOP PUBLISHING LTD
- Keywords
- dark matter experiments; dark matter theory
- Citation
- JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS, no.11
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
- Number
- 11
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/131349
- DOI
- 10.1088/1475-7516/2019/11/008
- ISSN
- 1475-7516
- Abstract
- There is a long standing debate about whether or not the annual modulation signal reported by the DAMA/LIBRA collaboration is induced by Weakly Interacting Massive Particles (WIMP) in the galaxy's dark matter halo scattering from nuclides in their NaI(Tl) crystal target/detector. This is because regions of WIMP-mass vs. WIMP-nucleon cross-section parameter space that can accommodate the DAMA/LIBRA-phase1 modulation signal in the context of the standard WIMP dark matter galactic halo and isospin-conserving (canonical), spin-independent (SI) WIMP-nucleon interactions have been excluded by many of other dark matter search experiments including COSINE-100, which uses the same NaI(Tl) target/detector material. Moreover, the recently released DAMA/LIBRA-phase2 results are inconsistent with an interpretation as WIMP-nuclide scattering via the canonical SI interaction and prefer, instead, isospin-violating or spin-dependent interactions. Dark matter interpretations of the DAMA/LIBRA signal are sensitive to the NaI(Tl) scintillation efficiency for nuclear recoils, which is characterized by so-called quenching factors (QF), and the QF values used in previous studies differ significantly from recently reported measurements, which may have led to incorrect interpretations of the DAMA/LIBRA signal. In this article, the compatibility of the DAMA/LIBRA and COSINE-100 results, in light of the new QF measurements is examined for different possible types of WIMP-nucleon interactions. The resulting allowed parameter space regions associated with the DAMA/LIBRA signal are explicitly compared with 90% confidence level upper limits from the initial 59.5 day COSINE-100 exposure. With the newly measured QF values, the allowed 3 sigma regions from the DAMA/LIBRA data are still generally excluded by the COSINE-100 data.
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Collections - Graduate School > Department of Accelerator Science > 1. Journal Articles
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