HEP Seminar-Luiz de Viveiros- Penn State University-"Project 8: Measuring the Neutrino Mass using Cyclotron Radiation Emission Spectroscopy"

Tue, Oct 15, 2019, 2:00 pm to 3:00 pm
Jadwin Hall 303


Project 8 is an experiment that seeks to determine the mass of the electron neutrino via the precise measurement of the electron energy in beta decays, with a goal sensitivity of 40 meV/c^2.  We have developed a novel technique called Cyclotron Radiation Emission Spectroscopy (CRES), which allows single electron detection and characterization through the measurement of cyclotron radiation emitted by magnetically-trapped electrons produced by a gaseous radioactive source. The technique has been successfully demonstrated on a small scale in waveguides to detect radiation from single electrons, and to measure the continuous spectrum from tritium. The next phase of the experiment will move to larger volumes to increase sensitivity, requiring implementation of CRES in a free-space radiation environment instrumented with a phased array of antennas.  We present an overview of the Project 8 experimental program, highlighting the recent breakthroughs that made possible the measurement of the tritium spectrum using CRES, and the development of the techniques needed to deploy CRES at large scales.