Measuring the electron neutrino mass using the electron capture decay of 163Ho
Joel Ullom, Daniel Schmidt, Simon Bandler, Thomas Stevenson, Mark Croce, Katrina Koehler, Matteo De Gerone, Loredana Gastaldo, Christian Enss, Geonbo Kim, Angel… 展开作者
Joel Ullom, Daniel Schmidt, Simon Bandler, Thomas Stevenson, Mark Croce, Katrina Koehler, Matteo De Gerone, Loredana Gastaldo, Christian Enss, Geonbo Kim, Angelo Nucciotti, Stefano Ragazzi, Kyle Leach, Diana Parno, Brian Mong, Josef Frisch, Christopher Kenney
While the mass differences between neutrino mass states are known, their absolute masses and mass hierarchy have not yet been determined. Determining the mass of neutrinos provides access to physics beyond the Standard Model and the resulting value has implications for the growth of large-scale structure in the universe over cosmic history. Because of the importance of the topic, a number of efforts are already underway to determine the mass of neutrinos including direct kinematic measurements and indirect measurements of astrophysical phenomena that constrain the sum of the mass eigenstates through models of cosmic evolution. Here, we advocate for a collaborative international effort to perform a kinematic determination of the effective electron neutrino mass using calorimetric measurements of the decay of 163Ho. This effort is justified by the success of current experiments using the technique, its high benefit-to-cost ratio, the value of approaches with different systematic errors, and the value of measuring the electron neutrino mass rather than the electron anti-neutrino mass.
