Aachen 2019 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 8: Neutrinophysik I

T 8.5: Vortrag

Montag, 25. März 2019, 17:20–17:35, S06

Sterile Neutrino Search with the Double Chooz Experiment — •Denise Hellwig, Philipp Soldin, Achim Stahl, and Christopher Wiebusch — III. Physikalisches Institut B, RWTH Aachen

The Double Chooz experiment is a reactor neutrino disappearance experiment located at the Chooz nuclear power plant, France. It measures the electron-antineutrino flux of the two nuclear reactors with two detectors of identical design: A far detector at a distance of about 1 km and a near detector at a distance of about 400 m. The detectors have been operating from 2011 (far) and 2014 (near) till end of 2017. The combination of the two detectors offers sensitivity to sterile neutrino mixing parameters. Sterile neutrinos are neutrino mass states not taking part in weak interactions, but may mix with known neutrino states. This induces additional mixing angles and mass differences where Double Chooz is sensitive to the new mixing angle θ₁₄. This talk describes the search for sterile neutrinos and its results.