Direct Dark Matter Searches and the EDELWEISS-II experiment

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Two-Phase Xenon detectors ! Different scintillation (S1) <strong>and</strong> ionisation (S2) yields for nuclear <strong>and</strong> electronic recoils ! PMT array for (x,y), drift time for z : fiducial volume March 11th, 2009 Moriond EW La Thuile - DM searches 10
! Large mass of Xe (10 kg) + purification ! Located at Gran Sasso ! 59 days x 5.4 kg fiducial ! ~ 10 evts (Compton?) J.Angle et al., PRL 100, 021303(2008) Xenon-10 March 11th, 2009 Moriond EW La Thuile - DM searches 11
Page 1 and 2: Direct Dark Matter Searches and the
Page 3 and 4: Supersymmetry naturally “predicts
Page 5 and 6: Prediction uncertainties ! WIMP mas
Page 7 and 8: Background philosophy ! Difference
Page 9: ! Best present Spin- Independent li
Page 13 and 14: Xenon-100 ! Evolution: larger, bett
Page 15 and 16: ! 17 x 300 g modules installed in G
Page 17 and 18: ! Charge measurements: centre and g
Page 19 and 20: ! … improve on EDELWEISS-I (2002)
Page 21 and 22: EDELWEISS-II 210 Pb source calibrat
Page 23 and 24: ! Gamma rejection of 400g • ~1 mo
Page 25 and 26: ! 93.5 kgd GeNTD • 11 detectors x
Page 27: ! Serious competition between prese

Direct Dark Matter Searches and the EDELWEISS-II experiment

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