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Limits on interactions between weakly interacting massive particles and nucleons obtained with NaI(Tl) crystal detectors

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Title
Limits on interactions between weakly interacting massive particles and nucleons obtained with NaI(Tl) crystal detectors
Author(s)
K.W. Kim; Adhikari G.; Adhikari P.; Choi S.; C. Ha; Hahn I.S.; E.J. Jeon; Joo H.W.; W.G. Kang; Kim H.J.; N.Y. Kim; Kim S.K.; Y.D. Kim; Y.H. Kim; Y.J. Ko; H.S. Lee; J.S. Lee; Lee J.Y.; M.H. Lee; D.S. Leonard; S.L. Olsen; B.J. Park; Park H.K.; Park H.S.; K.S. Park; The KIMS collaboration
Publication Date
2019-03
Journal
JOURNAL OF HIGH ENERGY PHYSICS, v.2019, no.3, pp.194 -
Publisher
SPRINGER
Abstract
Limits on the cross section for weakly interacting massive particles (WIMPs) elastic scattering on nuclei in NaI(Tl) detectors at the Yangyang Underground Laboratory are obtained from a 2967.4 kg·day data exposure. The nuclei recoiling from the scattering process are identified by the pulse shape of the scintillation light signals that they produce. The data are consistent with a no nuclear-recoil hypothesis, and WIMP-mass-dependent 90% confidence-level upper-limits are set on WIMP-nuclei elastic scattering cross sections. These limits partially exclude the DAMA/LIBRA allowed region for WIMP-sodium interactions with the same NaI(Tl) target material. The 90% confidence level upper limit on the WIMP-nucleon spin-independent cross section is 3.26×10 −4 pb for a WIMP mass of 10 GeV/c 2 . © 2019, The Author(s)
URI
https://pr.ibs.re.kr/handle/8788114/6600
ISSN
1029-8479
Appears in Collections:
Center for Underground Physics(지하실험 연구단) > Journal Papers (저널논문)
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