Fermilab's MINOS experiment suggests difference in key neutrino and antineutrino property
Monday, June 14, 2010 - 22:20
in Physics & Chemistry
Scientists of the MINOS experiment at the Department of Energy's Fermi National Accelerator laboratory today (June 14) announced the world's most precise measurement to date of the parameters that govern antineutrino oscillations, the back-and-forth transformations of antineutrinos from one type to another. This result provides information about the difference in mass between different antineutrino types. The measurement showed an unexpected variance in the values for neutrinos and antineutrinos. This mass difference parameter, called deltam2 ('delta m squared'), is smaller by approximately 40 percent for neutrinos than for antineutrinos...