Mainz 2012 – scientific programme

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HK: Fachverband Physik der Hadronen und Kerne

HK 42: Instrumentation

HK 42.7: Talk

Thursday, March 22, 2012, 18:15–18:30, P 3

Optimization of the neutron lifetime experiment PENeLOPE with Monte-Carlo simulations — •Wolfgang Schreyer — Technische Universität München, Physik-Department E18

Complementary to high-energy experiments, precision measurements with ultra-cold neutrons (UCN) contribute substantially to particle physics and cosmology. Both fields are nowadays heavily supported by computer simulations.

At the Physik-Department of Technische Universität München the neutron lifetime experiment PENeLOPE is planned. A Monte-Carlo simulation code developed in house is used to simulate PENeLOPE, including UCN source, transport and storage in material bottles as well as in magnetic and gravitational fields. Additionally, the program is able to simulate the trajectories of the neutron decay products protons and electrons in electric and magnetic fields.

The results that will be presented led to several changes and optimizations of the experiment design and enabled to predict the overall performance of the measurement.

The project is supported by the Maier-Leibnitz-Laboratorium (Garching), the Deutsche Forschungsgemeinschaft and the Excellence Cluster "Origin and Structure of the Universe".