Search for inelastic dark matter with the CDMS II experiment

par Sebastian Arrenberg (University of Zurich)

jeudi 10 févr. 2011, 14:00 → 15:00 Europe/Paris

1222-RC-08 (LPNHE)

Results are presented from a reanalysis of the entire five-tower data set acquired with the Cryogenic Dark Matter Search (CDMS II) experiment at the Soudan Underground Laboratory, with an exposure of 969 kg-days. The analysis window was extended to a recoil energy of 150 keV, and an improved surface-event background-rejection cut was defined to increase the sensitivity of the experiment to the inelastic dark matter (IDM) model. Three dark matter candidates were found between 25 keV and 150 keV. The probability to observe three or more background events in this energy range is 11%. Due to the occurrence of these events the constraints on the IDM parameter space are slightly less stringent than those from our previous analysis, which used a narrower energy window of 10-100 keV.

Slides LPNHE_Seminar_15.pdf