Bulletin of the American Physical Society
APS April Meeting 2019
Volume 64, Number 3
Saturday–Tuesday, April 13–16, 2019; Denver, Colorado
Session G15: Neutrino Mass and Coherent Scattering
8:30 AM–10:30 AM,
Sunday, April 14, 2019
Sheraton
Room: Plaza Court 4
Sponsoring
Units:
DNP DPF
Chair: Noah Oblath, Pacific Northwest National Laboratory
Abstract: G15.00005 : Towards Atomic Tritium in Project 8*
9:18 AM–9:30 AM
Presenter:
Eric M Machado
(University of Washington)
Author:
Eric M Machado
(University of Washington)
Collaboration:
Project 8 Collaboration
Rotational and vibrational excitations of molecular tritium (T2) perturb the beta spectrum endpoint, which limits neutrino mass sensitivity in T2-based experiments to about 100 meV. Atomic tritium opens a path for Project 8 to reach a neutrino mass sensitivity goal of 40 meV. To that end, the collaboration is developing techniques needed to produce, cool, and trap atomic tritium in a way that is compatible with Cyclotron Radiation Emission Spectroscopy. These efforts include a hardware testbed for characterizing the beam from a custom-designed, coaxial-current hydrogen atom source. The scope of the testbed will include magnetic focusing and cooling of the beam, for eventual integration with an atomic hydrogen-trapping demonstrator. Here, progress is presented on the construction and commissioning of the atom source and hardware testbed.
*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.
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