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Dortmund 2006 – wissenschaftliches Programm

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T: Teilchenphysik

T 508: Kosmische Strahlung X

T 508.7: Vortrag

Donnerstag, 30. März 2006, 17:50–18:05, HG2-HS1

Investigation of optical scintillation properties for LENA and the detection of supernovae relic neutrinos — •Michael Wurm1, Franz von Feilitzsch1, Marianne Goeger-Neff1, Kathrin Hochmuth2, Teresa Marrodan Undagoitia1, Lothar Oberauer1, and Walter Potzel11Physik-Department E15, Technische Universität München, James-Franck-Str. 85748 Garching bei München — 2Max Planck Institut für Physik, Föhringer Ring, München

The LENA (Low Energy Neutrino Astronomy) detector is proposed to be a large-volume liquid-scintillator device. The liquid scintillator suggested is about 50kt of PXE. The optical properties of scintillator cocktails based on PXE have been investigated. In addition, the potential of LENA in the detection of supernovae relic neutrinos has been studied. The background due to reactor neutrinos was calculated for different locations of the detector. With LENA the star formation rate can be determined up to a redshift Z∼1. Different models of gravitational collapse can be distinguished with this measurement.

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