The KamLAND - Zen experiment succeeded in dramatically improving the neutrinoless decay search limit by combing an ultra-low background detector with an unprecedented amount of xenon - 136, the isotope where the double -
beta decay occurs.
Not exact matches
If the neutrino is its own antiparticle, a neutrino - free version of this
decay might also
occur: In a rarity atop a rarity, the antineutrino emitted in one of the two simultaneous
beta decays might be reabsorbed by the other, resulting in no escaping antineutrinos.
Neutrinoless double
beta decay is a variation on standard
beta decay, a relatively common radioactive process that
occurs naturally on Earth.
In certain isotopes of particular elements — species of atoms characterized by a given number of protons and neutrons — two
beta decays can
occur simultaneously, emitting two electrons and two antineutrinos.