Physicists have discovered a never-before-seen atomic nucleus — aluminium-20 — that quite literally falls apart in three distinct proton bursts. This rare and unstable isotope doesn’t just decay, it unravels through a dramatic sequence of proton emissions that challenge long-held assumptions about nuclear structure. The finding marks the first known case of a “triple-proton decay […]



Summary

Physicists have discovered aluminium-20, a novel atomic nucleus exhibiting a unique “triple-proton decay.” This unstable isotope doesn’t simply decay; it unravels through a cascade of three distinct proton emissions. This unprecedented observation challenges existing models of nuclear structure and represents the first documented instance of this specific type of decay process. The discovery provides valuable insight into the behavior of extremely neutron-deficient nuclei and could reshape our understanding of the fundamental forces governing atomic nuclei.

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