Berlin 2005 – wissenschaftliches Programm

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T: Teilchenphysik

T 501: Kosmische Strahlung VII

T 501.1: Vortrag

Dienstag, 8. März 2005, 14:00–14:15, TU H105

Low Energy Neutrino Astrophysics. The LENA Project — •Teresa Marrodán, Franz von Feilitzsch, Lothar Oberauer, Walter Potzel, Marianne Göger-Neff, Kathrin Hochmuth, Michael Wurm, and Ludwig Niedermeier — Technische Universitaet Muenchen

LENA is proposed to be a large volume liquid scintillation detector with a cylindrical shape, approximately 30m diameter and 90m length. The liquid scintillator suggested to be used is PXE (phenyl-o-xylylethane) due to its safety (a flash-point of 145^∘C) and its high light yield. In order to collect the emitted scintillation light, 30 per cent of the detector surface will be covered with about 12000 photomultipliers of 50cm diameter each. The site of the detector can either be under sea close to the coast at Pylos (Greece) or at the ’Center of Underground Physics’ in Pyhäsalmi (CUPP, Finland). Both are favored sites since they are far away from nuclear power plants.

The project aims to study the gravitational collaps of a star and the star formation in the early universe by measuring supernovae neutrinos. Further goals consist in the measurement of low energy solar neutrinos, the test of geophysical models with antineutrino spectroscopy, the search for the proton decay, the indirect search for WIMPs and the use of the detector for long-baseline neutrino oscillation experiments.