Scientists found 7 astrophysical tau neutrinos—particles that are notoriously difficult to detect—in an analysis of data from the IceCube Neutrino Observatory. A tau neutrino produces a tau lepton—a heavy cousin of the electron—that emits a photon ball both when it is produced and when it decays.

Scientists found 7 astrophysical tau neutrinos—particles that are notoriously difficult to detect—in an analysis of data from the IceCube Neutrino Observatory. A tau neutrino produces a tau lepton—a heavy cousin of the electron—that emits a photon ball both when it is produced and when it decays.

https://physics.aps.org/articles/v17/58