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Münster 2017 – scientific programme

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T: Fachverband Teilchenphysik

T 11: Neutrinophysik 1 (Neutrinomassen)

T 11.8: Talk

Monday, March 27, 2017, 18:35–18:50, VSH 17

Project 8: Atomic Tritium Motivation and Source Design — •Alec Lindman, Sebastian Böser, and Peter Peiffer — Institut für Physik, Johannes Gutenberg Universität Mainz

Project 8 is a phased approach to measuring the absolute neutrino mass with Cyclotron Radiation Emission Spectroscopy (CRES) of tritium beta decay electrons. This talk will discuss the motivations for an atomic T source and the supporting apparatus design in light of engineering feasibility and the design sensitivity. All existing T β-decay mν measurements use molecular T2, which has a relatively broad final states spectrum. An atomic T source and a few cubic meter trap volume will enable the target sensitivity. Parallel technology development efforts in Project 8 aim to deliver a trap with magnetic field uniformity of 10−7, filled with tritium having a T2 contamination less than 10−6 and instrumented with a spatially resolving phased antenna array to measure the femtowatt CRES signals. In such a trap, one year of runtime with 1018 T atoms should provide 40 meV sensitivity to the neutrino mass.

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