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T: Fachverband Teilchenphysik

T 32: Neutrino physics with accelerators

T 32.6: Vortrag

Dienstag, 31. März 2020, 18:15–18:30, H-HS XV

On the road to Theia: the new Mainz WbLS test cell — •Daniele Guffanti, Michael Wurm, and Nils Brast — Institute of Physics and Excellence Cluster PRISMA, Johannes Gutenberg-Universität Mainz, 55099 Mainz, Germany

One of the most promising developments in the field of neutrino detectors is the recent progress in the production of Water-based Liquid Scintillators (WbLS). This innovative detection medium is being considered by a new generation of neutrino experiments (THEIA, Watchman) for the possibility to combine the advantages of Water Cherenkov and Liquid Scintillators detectors, which opens the way to a broad physics program ranging from long baseline oscillation study to the measurement of low-energy solar neutrinos.

We present in this contribution the status of the development of a small test cell of approx. 10 l volume to be used to characterize different scintillating cocktails and probe the separation of Cherenkov and scintillation signals thanks to a fast PMT readout. Insights on the optical and scintillation properties of WbLS as well as future development and characterization of complementary ultra-fast photodetection systems (SiPM array, LAAPD) will be extremely valuable in view of the THEIA project and for the forthcoming upgrade of the ANNIE experiment.

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DPG-Physik > DPG-Verhandlungen > 2020 > Bonn