München 2009 – wissenschaftliches Programm
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T: Fachverband Teilchenphysik
T 102: Niederenergie-Neutrinophysik & Suche nach dunkler Materie 3
T 102.1: Gruppenbericht
Mittwoch, 11. März 2009, 16:45–17:05, A140
Low energy neutrino astronomy and particle physics with LENA — •Teresa Marrodan Undagoitia1,2, Franz von Feilitzsch1, Marianne Goeger-Neff1, Lothar Oberauer1, Walter Potzel1, Sebastian Todor1, Juergen Winter1, and Michael Wurm1 — 1Physik-Department E15, TU-München, Garching — 2Physik-Institut, Universität Zürich, Schweiz
LENA is proposed to be a large-volume liquid-scintillation detector for neutrino astronomy and for the search for proton decay. In the current design, it is planned as a vertical cylinder of 30m diameter and 100m height. The detection medium consists of 50kt organic liquid scintillator, the emitted light of which is detected by about 15000 photomultipliers. In this talk the main physics topics of LENA are presented together with calculations and Monte Carlo simulations to demonstrate the capabilities of the detector. Key goals of this project are for example the measurement of solar, supernovae and geo-neutrinos, as well as to extend the search for proton decay beyond the current lifetime limits. LENA is part of an European design study, LAGUNA, which evaluates the feasibility of an underground location for a large detector. Three detector concepts have been proposed, a megaton water-Cherenkov, a 100kt liquid-argon TPC and the LENA detector. The status of the engineering studies for different locations is reported. This work is supported by funds of the DFG (Transregio 27: Neutrinos and Beyond), the Excellence Cluster Universe and the Maier-Leibnitz-Laboratorium (Garching).