Mainz 2014 – scientific programme

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T: Fachverband Teilchenphysik

T 32: Dunkle Materie 2

T 32.1: Talk

Monday, March 24, 2014, 16:45–17:00, P11

Measuring the charge yield of electromagnetic interactions with XENON100 — •Ludwig Rauch on behalf of the XENON Collaboration — Max-Planck-Institut für Kernphysik, Heidelberg

The XENON100 experiment is not only sensitive to dark matter particles scattering off a nucleus but also probes new particles beyond the standard model which produce electronic recoils. To understand the signatures of such particles in liquid xenon, one needs to study the energy dependence of the charge yield for such interactions. In this talk an analysis, able to measure the charge yield with the XENON100 detector is introduced. This is achieved by selecting double scattered photons of a Cs137 calibration source within the dual phase time protection chamber of XENON100. For these events it is possible to reconstruct the Compton angle via a kinematic approach due to the high vertex resolution of the detector. In addition to the method, first results will be presented.