SIMPLE Dark Matter Search Results
TA Girard, F. Giuliani, T. Morlat, M. Felizardo da Costa, J.I. Collar,, D. Limagne, G.Waysand, J.Puibasset, H.S. Miley, M. Auguste, D. Boyer, A., Cavaillou, J.G. Marques, C. Oliveira, M. Felizardo, A.C. Fernandes, A.R., Ramos, R.C. Martins
TL;DR
The paper reports improved results from the SIMPLE dark matter search experiment, significantly tightening constraints on spin-dependent dark matter interactions despite low exposure, comparable to larger experiments.
Contribution
It presents an enhanced SIMPLE experiment with four detectors, achieving a tenfold improvement in sensitivity over previous results.
Findings
Approximately tenfold improvement in experimental sensitivity.
Restrictions on spin-dependent dark matter coupling strengths nearly match larger experiments.
Low exposure still yields competitive constraints.
Abstract
We report an improved SIMPLE experiment comprising four superheated droplet detectors with a total exposure of 0.42 kgd. The result yields ~ factor 10 improvement in the previously-reported results, and -- despite the low exposure -- is seen to provide restrictions on the allowed phase space of spin-dependent coupling strengths almost equivalent to those from the significantly larger exposure NAIADCDMS/ZEPLIN searches.
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