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Recent High Mass WIMP search results from DarkSide-50

Xin Xiang, Princeton University
Tuesday, March 20, 2018 - 3:45pm to 4:45pm
NPL Conference Room, Rm 178

‚ÄčLocated at the LNGS, Italy, DarkSide (DS) is a dark matter search project, which features a dual-phase Time Projection Chamber as the WIMP detector, surrounded by an organic liquid-scintillator neutron veto and a water-Cherenkov muon veto. The current DS-50 has been taking data with Ar extracted from underground sources (UAr) since April 2015. As of October 2017, the experiment accumulated 532.4 live-days exposure of blinded data with the UAr target. In this talk, I will present the recent blind analysis and the spin-independent dark matter-nucleon coupling results. Various background studies will be discussed, with an emphasis on a novel concept of Cherenkov coincidence background. The Monte Carlo modeling of the background predictions will be presented.

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