Towards an improved Penning trap measurement of the mass difference between tritium and helium-3*

Motivated by the ongoing KATRIN and developing Project-8 tritium beta-decay neutrino mass experiments, we plan to reduce the uncertainty on the mass difference between tritium and helium-3 [1]. Progress towards an improved measurement will be reported.

[1] Atomic masses of tritium and helium-3, E.G. Myers, A. Wagner, H. Kracke and B. Wesson, Phys. Rev. Lett. 114, 013003 (2015).