München 2009 – wissenschaftliches Programm
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T: Fachverband Teilchenphysik
T 75: Experimentelle Methoden 1
T 75.4: Vortrag
Mittwoch, 11. März 2009, 17:40–17:55, A022
A source for ultra cold neutrons with a solid deuterium converter at the FRMII — •Andreas Frei1, Erwin Gutsmiedl1, Peter Hartung2, Stephan Paul1, Klaus Schreckenbach1, and Rainer Stoepler1 — 1Physik Department, Technische Universität München, James-Franck-Straße, DE-85748 Garching — 2Maier-Leibnitz-Laboratorium der Universität und der Technischen Universität München, Am Coulombwall 6, D-85748 Garching
Spontaneous breaking of fundamental symmetries is an attractive topic in modern particle physics. Understanding qualitative and quantitative the parameters involved in these kind of processes could help to explain the unbalanced presence in the universe of matter (baryons) with respect to antimatter (anti-baryons). Due to their intrinsic properties, ultra cold neutrons (UCN) are excellent candidates for experiments measuring with high level of accuracy parameters like the electric dipole moment (EDM), the neutron lifetime (τn), the axial-vector coupling constant (gA), or in search of quantum effects of gravity. In this talk the current status of the setup for a source for ultra cold neutrons with a solid deuterium converter at the Forschungsneutronenquelle Heinz Maier-Leibnitz (FRMII) is presented. Also experimental results from a UCN-source prototype will be compared with theoretical models to prove calculations for the performance of the new source at the FRMII. This project ist supported by the Cluster of Excellence ”Origin and Structure of the Universe” (EXC153), the Maier-Leibnitz-Laboratorium (MLL) and the Deutsche Forschungsgemeinschaft (DFG-PA762).