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Updated: Jun 5, 2026

Setting Limits on Supersymmetry Using Simplified Models
Published on: November 15, 2013
First results of the Phase II SIMPLE dark matter search
M Felizardo1, T Morlat, A C Fernandes
1Department of Physics, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal.
Abstract:
We report results of a 14.1 kg d measurement with 15 superheated droplet detectors of total active mass 0.208 kg, comprising the first stage of a 30 kg d 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 2.3×10⁻⁵ pb at M(W)=45 GeV/c² is obtained.
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