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arXiv · 1003.2987

First Results of the Phase II SIMPLE Dark Matter Search

M. Felizardo·T. Morlat·A. C. Fernandes·TA Girard·J. G. Marques·A. R. Ramos·M. Auguste·D. Boyer·A. Cavaillou·C. Sudre·J. Poupeney·R. F. Payne·H. S. Miley·J. Puibasset
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Abstract

We report results of a 14.1 kgd measurement with 15 superheated droplet detectors of total active mass 0.208 kg, comprising the first stage of a 30 kgd Phase II experiment. In combination with the results of the neutron-spin sensitive XENON10 experiment, these results yield a limit of |a_p| < 0.32 for M_W = 50 GeV/c2 on the spin-dependent sector of weakly interacting massive particle-nucleus interactions with a 50% reduction in the previously allowed region of the phase space formerly defined by XENON, KIMS and PICASSO. In the spin-independent sector, a limit of 2.3x10-5 pb at M_W = 45 GeV/c2 is obtained.

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M. Felizardo, T. Morlat, A. C. Fernandes, TA Girard, J. G. Marques, A. R. Ramos, M. Auguste, D. Boyer, A. Cavaillou, C. Sudre, J. Poupeney, R. F. Payne, H. S. Miley, J. Puibasset. 2010-03-15. First Results of the Phase II SIMPLE Dark Matter Search. https://doi.org/10.1103/physrevlett.105.211301

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