UW News

Peter Doe


September 16, 2019

KATRIN cuts the mass estimate for the elusive neutrino in half

A large piece of scientific equipment being moved through a town

An international team of scientists has announced a breakthrough in its quest to measure the mass of the neutrino, one of the most abundant, yet elusive, elementary particles in our universe. At the 2019 Topics in Astroparticle and Underground Physics conference in Toyama, Japan, leaders from the KATRIN experiment reported Sept. 13 that the estimated range for the rest mass of the neutrino is no larger than 1 electron volt, or eV.