Speakers
Description
Measurements of the $\beta^-$ spectrum of tritium give the most precise directly measured limits on neutrino mass. The Project 8 collaboration is using Cyclotron Radiation Emission Spectroscopy (CRES), a new experimental technique developed to surmount the systematic and statistical limitations of current-generation direct measurement methods to reach an electron-weighted antineutrino mass sensitivity of ${\sim}$40 meV/c$^2$. Since setting the first CRES-based neutrino mass limit in its Phase II experiment, Project 8 has been developing techniques to scale in volume and energy resolution. A new Cavity CRES Apparatus (CCA) is the first CRES detector with a resonant cavity geometry, with several expected benefits: increased signal-to-noise ratio via enhanced spontaneous emission on resonance; scalability to larger volumes; sub-eV energy resolution; event-by-event magnetic field corrections; and improved signal morphology via suppression of the Doppler effect. This apparatus is under construction at the University of Washington, with expected sub-eV energy resolution and plans for spectroscopy of both conversion electrons from Kr-83m and of electrons from a calibration electron gun.
| Poster prize | No |
|---|---|
| Given name | Elise |
| Surname | Novitski |
| First affiliation | University of Washington, Seattle |
| Second affiliation | Center for Experimental Nuclear Physics and Astrophysics |
| Institutional email | en37@uw.edu |
| Gender | Female |
| Collaboration (if any) | Project 8 |
