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T: Fachverband Teilchenphysik

T 23: Postersitzung

T 23.8: Poster

Montag, 29. Februar 2016, 13:30–14:30, VMP4 Foyer

Dark matter analysis of XENON100 data and cut development utilizing the novel PAX raw data processor — •Christian Wittweg — Institut für Kernphysik, Westfälische Wilhelms-Universität, Münster, Germany

The XENON100 experiment located at LNGS is aimed at the direct detection of weakly interacting massive particles (WIMPs). It utilizes an ultra-low background dual-phase xenon TPC which yields two separate scintillation signals that facilitate background discrimination and event selection. Limits on various interaction types have been published by the collaboration (Science 349 (2015) 6250, 851-854).

In the analysis dark matter candidate events have to pass cuts with respect to data quality, consistency and physical features of the interaction. The former ones are implemented with regard to the used data processor's capabilities for noise discrimination and peak-finding. The Processor for Analyzing Xenon (PAX), developed for the XENON1T experiment, enhances these capabilities compared to XENON100. A greater robustness against noise and an increased peak-identification efficiency open up new opportunities for physically motivated cuts while rendering old ones obsolete.

The poster will focus on the implementation of new cuts into the analysis chain. Both PAX and the xenon analysis will be introduced. A planned full-scale dark matter analysis of PAX-processed XENON100 data will be outlined. This work is supported by BMBF under contract number 05A14PM1.