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T: Fachverband Teilchenphysik
T 40: Niederenergie-Neutrinophysik 2
T 40.6: Group Report
Monday, March 24, 2014, 18:10–18:30, P106
The Double Chooz Experiment — •Stefan Schoppmann for the Double Chooz collaboration — III. Physikalisches Institut B, RWTH Aachen University
The Double Chooz experiment is a reactor neutrino disappearance experiment located in Chooz, France. It consists of two identical liquid scintillator detectors and measures the electron-antineutrino flux of two nuclear reactors located at the Chooz nuclear power plant. The 1 km distant far detector started operation in 2011. It was upgraded end of 2013 and is now recommissioned. The 400 m distant near detector is currently under construction and expected to start operation in mid 2014.
The aim of the Double Chooz experiment is the precise measurement of the neutrino mixing angle θ13, a neutrino oscillation parameter. The reactor neutrinos are detected by the signature of an inverse beta decay (IBD). The IBD-produced neutrons can be captured by Gadolinium or Hydrogen, which provides two independent data samples. Both samples allow the utilisation of the neutrino rate and energy spectral shape information, as this information is extracted from the spectrum of the IBD-produced positrons.
This contribution provides an overview of the recently performed work done on both detectors. Furthermore, it reviews the latest results of the experiment.