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

Kim, K. W.; Adhikari, G.; Adhikari, P.; Choi, S.; Ha, C.; Hahn, I. S.; Jeon, E. J.; Joo, H. W.; Kang, W. G.; Kim, H. J.; Kim, N. Y.; Kim, S. K.; Kim, Y. D.; Kim, Y. H.; Ko, Y. J.; Lee, H. S.; Lee, J. S.; Lee, J. Y.; Lee, M. H.; Leonard, D. S.; Olsen, S. L.; Park, B. J.; Park, H. K.; Park, H. S.; Park, K. S.

doi:10.1007/JHEP03(2019)194

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

Kim, K. W.;
Adhikari, G.;
Adhikari, P.;
Choi, S.;
Ha, C.;
... Park, H. K.;
외 19명

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초록

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 kgday 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 3.26x10(-4) pb for a WIMP mass of 10 GeV/c(2).

키워드

Dark matter; Dark Matter and Double Beta Decay (experiments); DARK-MATTER; NAIAD EXPERIMENT; WIMP SEARCH; FAST EVENTS; SURFACE

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

저자: Kim, K. W.; Adhikari, G.; Adhikari, P.; Choi, S.; Ha, C.; Hahn, I. S.; Jeon, E. J.; Joo, H. W.; Kang, W. G.; Kim, H. J.; Kim, N. Y.; Kim, S. K.; Kim, Y. D.; Kim, Y. H.; Ko, Y. J.; Lee, H. S.; Lee, J. S.; Lee, J. Y.; Lee, M. H.; Leonard, D. S.; Olsen, S. L.; Park, B. J.; Park, H. K.; Park, H. S.; Park, K. S.

DOI: 10.1007/JHEP03(2019)194

발행일: 2019-03-29

유형: Article

저널명: Journal of High Energy Physics

호: 3