Abstract
The 760-ton liquid argon ICARUS T600 detector performed a successful three-year physics run at the underground LNGS laboratories, studying in particular neutrino oscillations with the CNGS neutrino beam from CERN. This detector has been moved in 2017 to Fermilab after a significant overhauling and will be exposed soon to the Booster Neutrino Beam acting as the far station to search for sterile neutrinos within the SBN program. The contribution addresses the developed methods and the results of an analysis to identify and reconstruct atmospheric neutrino interactions collected by ICARUS T600 in the underground run at LNGS. Despite the limited statistics, this search demonstrates the excellent quality of the detector reconstruction and the feasibility of an automatic search for the electron neutrino CC interactions in the sub-GeV range, as required for the study of the BNB neutrinos at FNAL.
Highlights
The 760-ton liquid argon ICARUS T600 detector performed a successful three-year physics run at the underground LNGS laboratories, studying in particular neutrino oscillations with the CNGS neutrino beam from CERN
ICARUS T600 in the underground run at LNGS. This search demonstrates the excellent quality of the detector reconstruction and the feasibility of an automatic search for the electron neutrino CC interactions in the sub-GeV range, as required for the study of the BNB neutrinos at FNAL
A very promising detection technique for the study of rare events like neutrino interactions is based on the Liquid Argon Time Projection Chamber (LArTPC)
Summary
A very promising detection technique for the study of rare events like neutrino interactions is based on the Liquid Argon Time Projection Chamber (LArTPC). The LArTPC is a continuously-sensitive and self-triggering detector, characterized by high granularity and spatial resolution: it provides a 3D imaging of any ionizing event starting from the electrons produced by each ionizing event taking place in highly purified LAr ionization. These ionization electrons can be transported by a uniform electric field and can be collected by three parallel wire planes, placed at the end of the drift path with wires oriented in different directions. From October 2010 to December 2012, ICARUS has collected about 3000 neutrino events from the CNGS CERN to Gran Sasso neutrino beam corresponding to 8.6 × 1019 protons on target. The two T600 modules have been transported to FNAL in July 2017 and are currently being installed in the far position at the FNAL Booster beam: in particular, the detector commissioning is expected to start at the beginning of 2019
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