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Dortmund 2021 – scientific programme

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T: Fachverband Teilchenphysik

T 69: Neutrino physics without accelerators VI

T 69.1: Group Report

Wednesday, March 17, 2021, 16:00–16:20, Ts

First constraints on coherent elastic neutrino nucleus scattering by CONUS — •Thomas Hugle for the CONUS collaboration — Max-Planck-Institut für Kernphysik (MPIK), Heidelberg, Germany

The CONUS experiment, located in Brokdorf, Germany, at one of the most powerful nuclear power plants in the world, aims at the detection of elastic neutrino nucleus scattering in the fully coherent regime below 10 MeV neutrino energy. This talk will describe the experimental setup of the four CONUS germanium detectors with a very low energy threshold in an elaborate shield at 17 m distance from the 3.9 GW thermal power generating reactor core. A first full spectral analysis of 248.7 kg·d reactor on and 58.8 kg·d reactor off (background) data will be presented, including all relevant systematic uncertainties and a complete Monte Carlo description of the background. This data set allows to place the current best limit on the coherent elastic scattering of reactor antineutrinos.

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