Speaker
Description
Measurements of the $\beta^-$ spectrum of tritium give the most precise directly measured limits on neutrino mass. Cyclotron Radiation Emission Spectroscopy (CRES) is a new experimental technique that has the potential to surmount the systematic and statistical limitations of current-generation direct measurement methods and reach an effective electron antineutrino mass sensitivity of ${\sim}$40 meV/c$^2$. I will introduce CRES, report recent results from the Phase II of Project 8---including systematic studies using $^{83m}$Kr and the first continuous spectrum measurement using CRES, in molecular tritium--and present Project 8's path to a full-scale neutrino mass measurement using atomic tritium. I will also describe recent progress on a precision $\beta^-$ spectrum measurement in $^6$He that is searching for chirality-flipping interactions using CRES.
