: Astronomie: double beta decay

physical process > radioactive decay > double beta decay

double beta decay

In nuclear physics, double beta decay is a type of radioactive decay in which two neutrons are simultaneously transformed into two protons, or vice versa, inside an atomic nucleus. As in single beta decay, this process allows the atom to move closer to the optimal ratio of protons and neutrons. As a result of this transformation, the nucleus emits two detectable beta particles, which are electrons or positrons. (Wikipedia, The Free Encyclopedia, https://en.wikipedia.org/wiki/Double_beta_decay)

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