Radioactive decays at limits of nuclear stability¶
Pfützner, M., Karny, M., Grigorenko, L. V., & Riisager, K. Radioactive decays at limits of nuclear stability. Reviews of Modern Physics.
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Domain-specific¶
- Proton Emission
- Barrier penetrability can make an energetically open state live long enough to be observed as radioactivity
This sourceReviews of Modern Physics, 2012. Pfützner et al. state the condition directly: only when the penetration probability through the barrier — fixed by the decay energy and the angular momentum of the initial state — is large enough does particle emission compete with beta decay and appear as radioactivity. Pfützner et al. draw the contrast explicitly: unbound neutrons feel no Coulomb barrier, only the far weaker centrifugal term, so a system with negative neutron separation energy lives too short to be qualified as radioactive.
SupportedVerified against the source
- Barrier penetrability can make an energetically open state live long enough to be observed as radioactivity
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