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München 2019 – scientific programme

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HK: Fachverband Physik der Hadronen und Kerne

HK 13: Fundamental Symmetries I

HK 13.1: Group Report

Monday, March 18, 2019, 16:30–17:00, HS 16

The Neutron Lifetime Experiment PENeLOPE — •Dominic Gaisbauer — TU München, Garching, Deutschland

The neutron lifetime τn = 880.2 ± 1.0 s is an important parameter in the Standard Model of particle physics and in Big Bang cosmology. Several systematic corrections of previously published results reduced the PDG world average by several s in the last years and call for a new experiment with complementary systematics.

The experiment PENeLOPE, currently under construction at the Physik-Department of Technische Universität München, aims to determine the neutron lifetime with a precision of 0.1 s. It will trap ultra-cold neutrons in a magneto-gravitational trap using a large superconducting magnet and will measure their lifetime by both neutron counting and online proton detection.

This presentation will give an overview over the latest developments of the experiment. The project is supported by the Maier-Leibnitz-Laboratorium (Garching), the Deutsche Forschungsgemeinschaft and the Excellence Cluster "Origin and Structure of the Universe".

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