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T: Fachverband Teilchenphysik

T 20: Neutrinophysik I

T 20.6: Vortrag

Montag, 19. März 2018, 17:20–17:35, Z6 - SR 2.012

CONUS - A new experiment to measure COherent Neutrino nUcleus Scattering at reactor site — •Thomas Rink for the CONUS collaboration — Max-Planck-Institut für Kernphysik (MPIK), Heidelberg, Deutschland

The recent discovery of coherent elastic neutrino nucleus scattering (CEνNS) by the neutrino beam experiment COHERENT opened up a new and high statistics path in neutrino detection. The reaction’s coherent nature allows a strong enhancement of the corresponding cross section and makes it the strongest among all known neutrino interactions. Nevertheless, its detection in the fully coherent regime with reactor antineutrinos has been impossible so far due to very low nuclear recoil energies and their corresponding quenching, i.e. energy dissipation in the conversion of nuclear recoils into detectable signals. With the latest generation of Germanium detectors exhibiting lowest detection thresholds, around 300 eV, such attempts become feasible. The CONUS experiment established at MPIK Heidelberg aims at detecting this interaction with a high signal-to-background ratio by combining ultra-low threshold and high-purity Germanium detectors, an advanced shield design and highest possible antineutrino fluxes on the Earth’s surface. For this, CONUS uses four such low threshold detectors with a total mass up to 4 kg and is going to be operated at the nuclear power plant in Brokdorf, Germany. This talk introduces the design, realization and current status of the CONUS experiment and gives an overview of phenomenological and theoretical questions that can be addressed utilizing CEνNS.

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DPG-Physik > DPG-Verhandlungen > 2018 > Würzburg