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First results from the XENON1T dark matter experiment at LNGS.

Garbini M.
  Giovedì 14/09   09:00 - 11:30   Aula A203   III - Astrofisica
The XENON1T experiment, hosted in the Laboratori Nazionali del Gran Sasso (LNGS), is dedicated to the direct search of dark matter particles. It consists of a double-phase time projection chamber using ultra-pure liquid xenon. With an active target mass of 2 t, it's the largest TPC ever built and operated for dark matter search. Thanks to a careful selection of construction materials, a dedicated distillation of the xenon target, and an active muon veto system, the background level in the inner 1t fiducial region is about 2.e-4 dru, the lowest ever achieved in a direct dark matter experiment. We present here the results of the first XENON1T science run. We also discuss the plans for its future upgrade, XENONnT.