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XENON1T Dark Matter Data Analysis: Signal Reconstruction, Calibration and Event Selection

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arxiv 1906.04717 v2 pith:ZKPUPBEV submitted 2019-06-11 physics.ins-det hep-ex

XENON1T Dark Matter Data Analysis: Signal Reconstruction, Calibration and Event Selection

E. Aprile , J. Aalbers , F. Agostini , M. Alfonsi , L. Althueser , F. D. Amaro , V. C. Antochi , F. Arneodo
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classification physics.ins-det hep-ex
keywords datadetectorxenon1tanalysiscalibrationdarkeventexperiment
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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The XENON1T experiment at the Laboratori Nazionali del Gran Sasso is the most sensitive direct detection experiment for dark matter in the form of weakly interacting particles (WIMPs) with masses above $6\,$GeV/$c^2$ scattering off nuclei. The detector employs a dual-phase time projection chamber with 2.0 metric tons of liquid xenon in the target. A one metric $\mathrm{ton}\times\mathrm{year}$ exposure of science data was collected between October 2016 and February 2018. This article reports on the performance of the detector during this period and describes details of the data analysis that led to the most stringent exclusion limits on various WIMP-nucleon interaction models to date. In particular, signal reconstruction, event selection and calibration of the detector response to nuclear and electronic recoils in XENON1T are discussed.

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