Project 8: First Measurement of the Tritium Beta-Decay Spectrum Using CyclotronRadiation Emission Spectroscopy

ORAL

Abstract

Project 8 is a tritium beta-decay endpoint experiment which is planned to look for neutrino mass in the range allowed by the inverted mass hierarchy. Cyclotron radiation emission spectroscopy is the employed technique for a precise measurement of the energy of relativistic electrons. The technique was demonstrated utilizing mono-energetic conversion electrons from $^{83m}$Kr. In the most recent advance, the Project 8 collaboration measured a continuous spectrum by using tritium as the source of relativistic electrons. Here we present the recent hardware upgrades and advances in analysis tools which lead us to this first measurement of the tritium beta-decay spectrum.

*This work is supported by the US DOE Office of Nuclear Physics, the US NSF, the PRISMA Cluster of Excellence at the University of Mainz, and internal investments at all institutions

Presenters

  • Ali Ashtari Esfahani

    • University of Washington

Authors

  • Ali Ashtari Esfahani

    • University of Washington