Münster 2017 – scientific programme

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T: Fachverband Teilchenphysik

T 112: Experimentelle Techniken der Astroteilchenphysik 6

T 112.6: Talk

Thursday, March 30, 2017, 18:00–18:15, S 9

Positronium Lifetime Determination in Linear Alkylbenzene based Scintillator for JUNO — •Mario Schwarz, Hans Steiger, Sabrina Prummer, Lothar Oberauer, Philipp Landgraf, Marc Tippmann, and Julia Sawatzki — Technische Universität München, Physik Department, Lehrstuhl für experimentelle Astroteilchenphysik, James-Franck-Str. 1, 85748 Garching bei München

The planned JUNO (Jinangmen Underground Neutrino Observatory) Detector will use 20 kt of liquid scintillator (LS) based on LAB (Linear AlkylBenzene) as neutrino target. Reactor antineutrino interactions will be detected by means of inverse beta decay with the emission of a positron and analysis of the resulting luminescent light. An experimental setup for a lifetime determination of positronium formed in LAB is currently being developed in Munich. In this talk an overview of the setup is presentet as well as first results from Monte-Carlo-Simulations and measurements. This work is supported by the DFG Cluster of Excellence "Origin and Structure of the Universe", the DFG research unit "JUNO" and the Maier-Leibniz-Laboratorium.