Mainz 2014 – scientific programme

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T: Fachverband Teilchenphysik

T 32: Dunkle Materie 2

T 32.3: Talk

Monday, March 24, 2014, 17:15–17:30, P11

Construction and Simulation of a Compton scatter experiment with a dual-phase Xenon-TPC and a germanium detector — •Melanie Scheibelhut, Bastian Beskers, Cyril Grignon, Pierre Sissol, Uwe Oberlack, and Rainer Othegraven — Johannes Gutenberg Universität Mainz

The most sensitive dark matter search experiments today are based on the concept of a dual-phase xenon time projection chamber. The ton-scale is already under construction (XENON1T), and detectors at the 10 ton scale are being envisioned (e.g., DARWIN). Yet, the low energy behavior of liquid xenon is still not well understood. The MainzTPC is a small 3D position sensitive, dual phase xenon TPC to measure charge and scintillation yield at recoil energies of a few keV and to study the liquid xenon scintillation pulse shape. We constructed a Compton scatter experiment to study the electronic recoils due to low energy scattering of gamma-rays. Here we discuss the experimental set-up, characterisation of the germanium detector, and simulations including the MainzTPC.