DarkSide is a multi-stage program devoted to direct searches of Dark Matter particles with detectors based on double phase liquid Argon Time Projection Chamber. The DarkSide-50 setup is running underground at the Laboratori Nazionali del Gran Sasso. First it was operated with Atmospheric Argon and during that run (1422 ± 67) kg×d of truly background-free exposure has been accumulated. Obtained data made it possible to set a 90% C.L. upper limit on the WIMP-nucleon cross section of 6.1 × 10-44 cm2 (for a WIMP mass of 100 GeV/c2). Presently the detector is filled with Underground Argon, which is depleted in 39Ar by a factor of (1.4 ± 0.2)×103 with respect to Atmospheric Argon. Acquired so far (2616 ± 43) kg×d (71 live days) in combination with the data from the Atmospheric Argon run give us the 90% C.L. upper limit on the WIMP-nucleon spin-independent cross section of 2.0×10-44 cm2 for a WIMP mass of 100 GeV/c2. Up to date this is the best limit obtained with an argon target.

Zuzel, G., Agnes, P., Albuquerque, I.F.M., Alexander, T., Alton, A.K., Asner, D.M., et al. (2017). The DarkSide Experiment: Present Status and Future. JOURNAL OF PHYSICS. CONFERENCE SERIES, 798(1), 012109 [10.1088/1742-6596/798/1/012109].

The DarkSide Experiment: Present Status and Future

BUDANO, FEDERICO;BUSSINO, Severino Angelo Maria;DE VINCENZI, Mario;JAMES, IRINA;MARI, Stefano Maria;
2017

Abstract

DarkSide is a multi-stage program devoted to direct searches of Dark Matter particles with detectors based on double phase liquid Argon Time Projection Chamber. The DarkSide-50 setup is running underground at the Laboratori Nazionali del Gran Sasso. First it was operated with Atmospheric Argon and during that run (1422 ± 67) kg×d of truly background-free exposure has been accumulated. Obtained data made it possible to set a 90% C.L. upper limit on the WIMP-nucleon cross section of 6.1 × 10-44 cm2 (for a WIMP mass of 100 GeV/c2). Presently the detector is filled with Underground Argon, which is depleted in 39Ar by a factor of (1.4 ± 0.2)×103 with respect to Atmospheric Argon. Acquired so far (2616 ± 43) kg×d (71 live days) in combination with the data from the Atmospheric Argon run give us the 90% C.L. upper limit on the WIMP-nucleon spin-independent cross section of 2.0×10-44 cm2 for a WIMP mass of 100 GeV/c2. Up to date this is the best limit obtained with an argon target.
Zuzel, G., Agnes, P., Albuquerque, I.F.M., Alexander, T., Alton, A.K., Asner, D.M., et al. (2017). The DarkSide Experiment: Present Status and Future. JOURNAL OF PHYSICS. CONFERENCE SERIES, 798(1), 012109 [10.1088/1742-6596/798/1/012109].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11590/316563
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