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T: Fachverband Teilchenphysik

T 52: Neutrino physics without accelerators V

T 52.6: Vortrag

Mittwoch, 1. April 2020, 17:45–18:00, H-HS XIII

Signal and background event topologies in the 0νββ decay search in DARWIN — •Andrii Terliuk for the DARWIN collaboration — Physikalisches Institut, Universität Heidelberg, INF 226, 69120 Heidelberg — Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg

The DARWIN observatory is a future Dark Matter detector with 40 tons of liquid xenon in a sensitive volume of a dual-phase TPC. Natural xenon contains approximately 8.9% of ¹³⁶Xe isotope, which is currently considered as one of the possible candidates to undergo a neutrino-less double beta decay. The large mass, excellent radiopurity and good energy resolution makes DARWIN an ideal device to search for such a rare decay. In DARWIN, separation of signal from background relies on identification of events with single and multiple scatterings in the detector. This contribution discusses event topologies created by signal and background, as well as an impact of different 0νββ decay models on the signal selection efficiency.