22nd International Workshop on Weak Interactions and Neutrinos

Session

DG4 - Dark Matter

19

Sep 16, 2009, 11:00 AM

Strada Passo dell'Acqua, 34 - 06134 Bosco PERUGIA, Italy

147. Signals from the Universe: the DAMA/LIBRA results

Pierluigi Belli

9/16/09, 11:00 AM

The highly radiopure about 250 kg NaI(Tl) DAMA/LIBRA set-up is running at the Gran Sasso National Laboratory of the I.N.F.N.. Results exploiting the model independent annual modulation signature for Dark Matter particles in the galactic halo are presented (exposure of 0.53 ton x yr). The DAMA/LIBRA data confirm the evidence for the presence of Dark Matter particles in the galactic halo as...

87. Search for Dark Matter with the CDMS experiment

Sebastian Arrenberg

9/16/09, 11:25 AM

The Cryogenic Dark Matter Search Experiment (CDMS) employs a total of 30 Germanium and Silicon Detectors at the Soudan Underground Laboratory to detect weakly interacting massive particles (WIMPs) via their elastic scattering from the target nuclei. Previous CDMS results, released in February 2008, yielded a world-leading limit for spin-independent WIMP-nucleon cross sections for WIMP masses...

64. Dark matter and solar neutrinos with DEAP/CLEAN

Franco Giuliani

9/16/09, 5:30 PM

The large difference between the time constants of the two scintillation pulse com- ponents of a noble liquid like liquid Argon or Neon provide a very reliable correlation between pulse shape and type of event. This pulse shape discrimination already pro- vides the power of rejecting a background $10^{8}-10^{9}$ times larger than the signal. A 400 kg LAr detector, MiniCLEAN, is...

65. Dark Matter Searches and Fundamental Neutrino Measurements with IceCube-DeepCore

Darren Grant

9/16/09, 5:55 PM

IceCube is a cubic kilometer neutrino telescope under construction at the South Pole, a successor to the first-generation AMANDA telescope designed to the search for astrophysical neutrino sources. IceCube is now three quarters complete with the full detector expected to be operating in early 2011. Data taken with the partially built detector already provides world-leading...

142. Mirror Dark Matter

Zurab Berezhiani

9/16/09, 6:20 PM

75. DAMA/LIBRA and leptonically interacting Dark Matter

Jure Zupan

9/17/09, 9:00 AM

We consider the hypothesis that Dark Matter (DM) has tree-level interactions only with leptons. Such a framework, where DM recoils against electrons bound in atoms, has been proposed as an explanation for the annually modulated scintillation signal in DAMA/LIBRA versus the absence of a signal for nuclear recoils in experiments like CDMS or XENON10. However, even in such a leptophilic...

143. The WArP Experiment

Ettore Segreto

9/17/09, 9:50 AM

119. The ArDM experiment, a double phase liquid argon TPC for direct detection of Dark Matter

Claudia Lazzaro

9/17/09, 11:00 AM

The goal of the ArDM experiment is a direct detection of weakly interacting massive particles (WIMP) in the universe using a double phase argon TPC. This detector has a fiducial volume of about 1 ton of liquid argon and the detection is done independently by collecting the scintillation light as also by the ionization charge. The Argon scintillation light has to be converted with...

160. The LUX Dark Matter Experiment

Daniel McKinsey

9/17/09, 11:25 AM

Dark Matter

The LUX dark matter experiment is a 350 kg two-phase xenon time projection chamber. There are several advantages of liquid xenon for WIMP detection: high scintillation yield, high ionization yield, low intrinsic radioactivity, easy purification, effective gamma-ray self-shielding, and significant A^2 enhancement of the spin-independent WIMP cross-section. LUX is currently under construction...

137. Depleted Argon for Future Direct Dark Matter Searches with Argon

Cristiano Galbiati

9/17/09, 11:50 AM

I will discuss progress on procurement of large quantities of depleted argon from underground sources in the US, and the how this could improve future dark matter searches with argon detector. I will also discuss results from R&D efforts on two-phase argon detectors in the US and future plans.

95. Annual Modulation Effects Observable in a Noble Liquid Detector.

Andrzej Szelc

9/17/09, 12:15 PM

The use of liquid noble gas detectors in the search for Dark Matter is quickly becoming more widespread and they are already playing one of the major parts in the field. One of the possible signatures of the presence of Dark Matter is the so called annual modulation effect, possibly already observed by the DAMA collaboration. The liquid noble gas detectors are generally tailored to observe...