Physicists Set New Upper Limit For Neutrino Mass With Record Precision
After decades of attempting to mensurate the slew ofneutrinos , one of the most ill understand common subatomic particles , physicists still do n’t have an answer . They do , however , have a uttermost , and in the strange humankind of particle physics where units of energy measure mass , that is 0.8 electron volts for the negatron neutrino . The figure is about 100,000 time less than the lightest other standard modelfermion ....