Aachen 2019 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 55: Neutrinophysik III

T 55.6: Vortrag

Mittwoch, 27. März 2019, 17:30–17:45, H05

Detection of the Diffuse Supernova Neutrino Background (DSNB) in JUNO: Challenges and Prospects — •Julia Sawatzki and Lothar Oberauer — Technical University of Munich, Chair for Experimental Astroparticle Physics E15, James- Franck-Str. 1, 85748 Garching b. München

The planned 20kt liquid scintillator detector JUNO (Jiangmen Underground Neutrino Observatory) will offer the possibility of a diffuse supernova neutrino background (DSNB) measurement. Although the cosmic background of neutrinos generated by core collapse supernova explosions throughout the universe is present in all flavors, the study will focus on the measurement of electron antineutrinos via the inverse beta decay, as this coincidence reaction provide powerful background suppression. This is of particular importance, as the relic neutrino signal rate in JUNO is, with few events per year, quite low. Therefore good background knowledge as well as powerful background suppression techniques are required. Neutrinos produced in nuclear reactors, the atmosphere, and cosmic muons, which can induce cosmogenic isotopes or fast neutrons, are the main background sources.