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

UK Dark Matter Collabortion, G J Alner, H M Araujo, G J Arnison, J C Barton, A Bewick, C Bungau, B Camanzi, M J Carson, D Davidge, G J Davies, J C Davies, E Daw, J V Dawson, C Duffy, T J Durkin, T Gamble, S P Hart, R Hollingworth, G J HomerA S Howard, I Ivaniouchenkov, W G Jones, M K Joshi, J Kirkpatrick, V A Kudryavtsev, T B Lawson, V Lebedenko, M J Lehner, J D Lewin, P K Lightfoot, I Liubarsky, R Luscher, J E McMillan, B Morgan, A Murphy, G Nicklin, A Nickolls, S M Paling, R M Preece, J J Quenby, J W Roberts, M Robinson, N J T Smith, P F Smith, N J C Spooner, T J Sumner, D R Tovey, E Tziaferi

Research output: Contribution to journalArticlepeer-review


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 × 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.
Original languageEnglish
Pages (from-to)17-24
Number of pages8
JournalPhysics Letters B
Issue number1-2
Publication statusPublished - 9 Jun 2005


  • dark matter
  • WIMP
  • neutralino
  • pulse shape analysis
  • scintillation detectors
  • inorganic crystals
  • NAI(TL)
  • MINE


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