SMuK 2023 – scientific programme

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T: Fachverband Teilchenphysik

T 37: Neutrinos, Dark Matter IV

T 37.5: Talk

Tuesday, March 21, 2023, 18:00–18:15, POT/0251

Towards direct neutrino mass measurement with the Project 8 experiment — •Larisa Thorne for the Project 8 collaboration — Johannes Gutenberg University Mainz

There have been significant gains in characterizing neutrino properties in recent years, however the absolute neutrino mass scale continues to be elusive. The Project 8 collaboration seeks to probe this quantity directly via kinematic analysis of tritium beta decay, using the novel cyclotron radiation emission spectroscopy (CRES) technique with an atomic tritium source. CRES employs a frequency-based approach to measure tritium beta decay spectra in the endpoint region, where the spectral shape is most sensitive to distortions from the neutrino mass. Here we present a roadmap of Project 8 towards neutrino mass, with a design sensitivity of 40 meV. This includes recent results from our successful demonstrator experiment with tritium, as well as status updates on the components comprising the experiment's future full-scale version.