Dark force linked to neutrino mass

• Autores: Leah Crane
• Localización: New scientist, ISSN 0262-4079, Nº. 3170, 2018, pág. 16
• Idioma: inglés
• Texto completo no disponible (Saber más ...)
• Resumen

  • The tiny mass of a neutrino is a big puzzle. The standard model of physics suggests these particles should have no mass, but in experiments we see that they do. Now, Hooman Davoudiasl at Brookhaven National Laboratory in New York and his colleagues suggest a way these can both be true: neutrinos may gain differing amounts of mass through a weak force mediated by dark matter. Most fundamental particles are thought to get their mass through interactions with the Higgs field, which permeates the universe. But neutrinos are a million times lighter than the next lightest particle, the electron, so some hypothesize that they get mass from another, weaker force. Davoudiasl and his colleagues calculated that if dark matter particles and neutrinos interact, the dark matter could weigh down the nearly massless particles