Researchers from the KATRIN (Karlsruhe Tritium Neutrino) experiment report the most precise measurement of the upper mass limit of the neutrino to date, establishing it as 0.45 electron volts (eV ...

It seeks to constrain the neutrino’s mass by looking at the energy spectrum of electrons and electron antineutrinos emitted by decaying tritium, a radioactive isotope of hydrogen. As detailed in ...

Physicists have scaled down the maximum possible mass of an elusive "ghost particle" called a neutrino to at least one-millionth the weight of an electron. The revision takes scientists one more ...

It is no heavier than 0.45 electron volts (eV) — less than one-millionth the mass of an electron, the next-lightest known particle at 511,000 eV. The results were described on 10 April in Science 1.

Based in Karlsruhe, Germany, KATRIN studies an antimatter version of neutrino known as an electron antineutrino. The researchers observed radioactive decays of tritium, a heavy variety of hydrogen.

"The probability (per unit area) of a nucleus capturing a neutron at a given kinetic energy is called neutron-capture cross section," Thanos Stamatopoulos, first author of the paper, told Phys.org.

have announced the most precise upper limit yet on the neutrino’s mass. Thanks to new data and upgraded techniques, the new limit – 0.45 electron volts (eV) at 90% confidence – is half that of the ...

and "Which way do the scales tip?" they are now asking: "What would happen if you were to lose one electron from every atom in your body?" "So, I've seen the meme of 'Mods, add an electron to ...