8-13 September 2013
Asilomar, California
US/Pacific timezone

LZ: A 2nd Generation Dark Matter Direct-search Experiment

11 Sep 2013, 14:00
20m
Asilomar, California

Asilomar, California

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

Speaker

Prof. Mani Tripathi (UC Davis)

Description

The LZ collaboration has proposed a 2nd generation direct dark matter search experiment, which builds on the experience gained with the LUX and ZEPLIN series of experiments on the two-phase xenon TPC technique. It features an active target volume of ~7 tonnes and a robust 3-layer shield system consisting of a xenon skin volume and a liquid scintillator veto, embedded in the existing 6m diameter water tank at the 4850' level of the Sanford Underground Research Facility. We have developed a novel design for the liquefaction, recirculation and purification for this unprecedented large volume of xenon. Our studies of backgrounds are comprehensive and predict an approximately 6 tonne fiducial volume, in which the dominant electron and nuclear recoil backgrounds are from astrophysical neutrinos. The projected sensitivity for a 1,000 day running period for the WIMP-nucleon cross section is below 2.5x10^-48 cm^2 at a WIMP mass of 50 GeV. We will present some details of the advanced design of LZ, the background model, and our physics goals.

Primary author

Prof. Mani Tripathi (UC Davis)

Presentation Materials

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