Colloquium on 29 June 2017
Dark Matter Searches with XENON1T


Title: Dark Matter Searches with XENON1T
Speaker: Jacques Pienaar (Purdue University)
Date: Thursday, 29 June 2017
Time: 11:00 - 12:00
Venue: 1896 Building


The content of the universe is well known from astrophysical observations, from which we concluded that about 27% of the universe consists of dark matter. Current theories of what a particle physics candidate for dark matter might behave like, provide several avenues for detection of this missing component of our universe. The current best limits on properties of potential particle physics candidates for dark matter are set by direct dark matter detectors using high purity crystals of Ge, or liquid noble gas time projection chambers (TPCs).  XENON1T is a two-phase xenon TPC for the direct detection of dark matter. The target mass is 2 tons of liquid xenon. The detector was commissioned in the middle of 2016, and completed its first science run in January 2017. During the science run the detector has achieved the world’s lowest background among comparable experiments. This talk will present the detector performance, calibration, and background studies which are paving the way towards the world’s most sensitive dark matter search, and present the results of the first science run.

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