Abstract

The DarkSide experiment is designed for the direct detection of Dark Matter with a double phase liquid Argon TPC operating underground at Laboratori Nazionali del Gran Sasso. The TPC is placed inside a 30 tons liquid organic scintillator sphere, acting as a neutron veto, which is in turn installed inside a 1 kt water Cherenkov detector. The current detector is running since November 2013 with a 50 kg atmospheric Argon fill and we report here the first null results of a Dark Matter search for a (1422 ± 67) kg.d exposure. This result correspond to a 90% CL upper limit on the WIMP-nucleon cross section of 6.1 × 10-44 cm2 (for a WIMP mass of 100 GeV/c2) and it's currently the most sensitive limit obtained with an Argon target.

Highlights

  • Background rejection A W IMP interacting inside th e sensitive volume is expected to hit a nucleus and to produce a nuclear recoil

  • The DarkSide experim ent is designed for the direct detection of D ark M atter w

  • T he T P C is placed inside a 30 tons liquid organic scintillator sphere

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Summary

Introduction

Background rejection A W IMP interacting inside th e sensitive volume is expected to hit a nucleus and to produce a nuclear recoil.

Results
Conclusion
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