Séminaire / Seminar GReCO |
| « Results of direct searches for dark matter with EDELWEISS and other experiments » |
|
E. Armengaud |
| Weakly Interacting Massive Particles (WIMPs) have been one of the most promissing particle dark matter candidates for a long time. Several experiments are designed to measure directly the interaction of galactic WIMPs, and are currently exploring regions of SUSY parameter space where a signal could be expected. I will present the global status of experimental searches, and focus on the first results obtained by the EDELWEISS-II experiment. Six months of continuous operation at the Laboratoire Souterrain de Modane have been achieved. The observation of one nuclear recoil candidate above 20 keV in an effective exposure of 144 kg.d was interpreted in terms of limits on the cross-section of spin-independent interactions of WIMPs and nucleons. This result demonstrates for the first time the very high background rejection capabilities of our simple and robust detectors in an actual WIMP search experiment. Prospects for direct WIMP searches worldwide will be discussed. |
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lundi 22 mars 2010 - 11:00 Salle des séminaires Évry Schatzman Institut d'Astrophysique de Paris |
| Pages web du séminaire / Seminar's webpage |