Dresden 2013 – scientific programme

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HK: Fachverband Physik der Hadronen und Kerne

HK 66: Astroteilchenphysik

HK 66.1: Group Report

Thursday, March 7, 2013, 14:00–14:30, HSZ-401

The neutrino experiment SNO+: Overview and status — •Belina von Krosigk, Valentina Lozza, Nuno Barros, Arnd Sörensen, Felix Krüger, Laura Neumann, Axel Boeltzig, Johannes Petzold, and Kai Zuber — TU Dresden, Deutschland

SNO+ (Sudbury Neutrino Observatory) is an upcoming low energie neutrino experiment. It makes use of the former SNO detector, located at the currently deepest underground laboratory SNOLAB in a mine near Sudbury, Canada. This location provides ca. 6000 m.w.e. overburden for cosmic ray shielding. The core of the detector, a 12 m diameter acrylic vessel, will be filled with about 780 t of liquid scintillator, increasing the light yield compared to the SNO Cherenkov detector by a factor of about 50 and lowering the threshold below 1 MeV. Together with the use of ultra--pure materials SNO+ becomes thus sensitive to low energy neutrinos. The main goal of SNO+ is the search for neutrinoless double beta decay of 150Nd after loading the scintillator with 0.1% to 0.3% natural Nd (referring to about 44 kg to 132 kg 150Nd). In this phase searches for 8B solar-neutrinos, geo-neutrinos originating from radioactivity in the earth, atmospheric neutrinos, the potential observation of supernovae neutrinos and the study of reactor neutrino oscillations are also possible. In a later phase, for the detection of pep and CNO solar neutrinos, the Nd will be removed from the liquid scintillator.