Sep 8 – 13, 2013
Asilomar, California
US/Pacific timezone

DarkSide-50: a two-phase argon TPC for a direct WIMP search

Sep 10, 2013, 3:00 PM
Asilomar, California

Asilomar, California

Asilomar Conference Grounds, 800 Asilomar Avenue, Pacific Grove, CA 93950-3704
Oral Dark Matter Dark Matter III


Peter Meyers (Princeton University)


DarkSide-50 is a two phase argon TPC for direct dark matter detection, which is installed at the Gran Sasso underground laboratory, Italy. DarkSide-50 has a 50 kg active volume and will make use of underground argon low in Ar-39. The TPC is installed inside an active neutron veto made with boron-loaded high radiopurity liquid scintillator. The neutron veto is installed inside a 1000 m^3 water Cherenkov muon veto. The DarkSide-50 TPC and cryostat are assembled in two radon-free clean rooms to reduce radioactive contaminants. The overall design aims for a background free exposure after selection cuts are applied. The expected sensitivity for WIMP-nucleon cross section is of the order of 10^-45 cm^2 for WIMP masses around 100 GeV/c^2. The commissioning and performance of the detector will be described. Details of the low-radioactivity underground argon and other unique features of the projects will be reported.

Primary author

Peter Meyers (Princeton University)

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