Limits on WIMP cross-sections from the NAIAD experiment at the Boulby Underground Laboratory

Details Limits on WIMP cross-sections from the NAIAD experiment at the Boulby Underground Laboratory Limits on WIMP cross-sections from the NAIAD experiment at the Boulby Underground Laboratory

2005-04-17

arxiv.org/abs/hep-ex/0504031v1

Phys.Lett.B616:17-24,2005

Physics

High Energy Physics

High Energy Physics - Experiment

14 pages, 4 figures, to be published in Phys. Lett. B

Scientific paper

10.1016/j.physletb.2000.09.001

The NAIAD experiment (NaI Advanced Detector) for WIMP dark matter searches at the Boulby Underground Laboratory (North Yorkshire, UK) ran from 2000 until 2003. A total of 44.9 kg x years of data collected with 2 encapsulated and 4 unencapsulated NaI(Tl) crystals with high light yield were included in the analysis. We present final results of this analysis carried out using pulse shape discrimination. No signal associated with nuclear recoils from WIMP interactions was observed in any run with any crystal. This allowed us to set upper limits on the WIMP-nucleon spin-independent and WIMP-proton spin-dependent cross-sections. The NAIAD experiment has so far imposed the most stringent constraints on the spin-dependent WIMP-proton cross-section.

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