Sprecher
Beschreibung
The multi-staged Project 8 experiment aims for a direct neutrino mass measurement, investigating on the atomic Tritium's beta decay electron energy spectrum. It employs the non-destructive technique of Cyclotron radiation emission spectroscopy (CRES), which measures the electron’s energy from the cyclotron radiation it emits when moving in a magnetic field. While recent measurements have shown that the technique is successful, enhancing the sensitivity down to the final goal of a neutrino mass of <40 meV remains a challenge which will be tackled by moving to a cubic-meter low-frequency cavity readout. This allows for higher statistics and a better reconstruction of the exact electron motion, as well as for an enhancement in the electromagnetic coupling between the emitted radiation and the field.
In this talk, I will describe recent progress on the CRES signal phenomenology and sensitivity in Project 8 and follow up with an overview on the challenges and advances in both topics when moving to the projected big volume cavity stages.