Searching for Dark Matter with the EDELWEISS Experiments

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<strong>EDELWEISS</strong> in a Nutshell • Array of cryogenically cooled Germanium crystals (10 in II, 40 in III) • Elastic Scattering of Ge by WIMPs • Rare event search: underground and shielded experiment TU Dresden. G. Adam Cox 6 December 2012 Ge recoil produces heat + ionization Erecoil 13
<strong>EDELWEISS</strong> in a Nutshell • Array of cryogenically cooled Germanium crystals (10 in II, 40 in III) • Elastic Scattering of Ge by WIMPs • Rare event search: underground and shielded experiment TU Dresden. G. Adam Cox 6 December 2012 4800 mwe Ge recoil produces heat + ionization Polyethylene shield Muon Veto Pb shield cryostat Erecoil Neutron counter 13
Page 1 and 2: Searching for Dark Matter with the
Page 3 and 4: Astrophysical Evidence for Dark Mat
Page 5 and 6: Astrophysical Evidence for Dark Mat
Page 7 and 8: What are we looking for in Edelweis
Page 9 and 10: Direct Detection Experiments by Mec
Page 11 and 12: Ge Nuclei Recoil Signal Characteris
Page 13 and 14: Edelweiss Signal Readout EDELWEISS
Page 15: EDELWEISS in a Nutshell • Array o
Page 19 and 20: TU Dresden. G. Adam Cox 6 December
Page 21 and 22: Detection Principle Exploit Ionizat
Page 23 and 24: Detection Principle TU Dresden. G.
Page 25 and 26: Detection Principle Erecoil ~ Eheat
Page 27 and 28: Why Inter-Digitized Electrodes? Pla
Page 29 and 30: Readout Channels charge carriers fo
Page 31 and 32: Event Location For each trigger, we
Page 39 and 40: Putting it all together • Measure
Page 41 and 42: Signal Processing Tools Needed •
Page 43 and 44: Event Reconstruction: Erecoil and Q
Page 45 and 46: Gamma Band and Nuclear Recoil Band
Page 47 and 48: “High” Energy Edelweiss 2 Resul
Page 49 and 50: Direct Detection Status early 2012
Page 51 and 52: Direct Detection Experiments • DA
Page 59 and 60: Low Energy Analysis Convert ONLY he
Page 61 and 62: Setting Cross-Section Limits ID3, 1
Page 63 and 64: Low Mass WIMP Cross Section Limits
Page 65 and 66: ection [cm 2 ] (normalised Cross−
Page 67 and 68:
Increased Exposure: More detectors
Page 69 and 70:
Gammas • FIDs appear to show bett
Page 71 and 72:
Energy Resolution • New Front-End
Page 73 and 74:
New Data Management / Routing Syste
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Searching for Dark Matter with the EDELWEISS Experiments

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