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Accepted · first revision · record

Title: Total number of particle-bound nuclei
Plain: About 3,300 different nuclei have been observed, but theory suggests roughly twice as many could exist. The precise number depends on uncertain theory far from known nuclei.
Precise: Determine the number of nuclides with $Z \le 120$ bound against one- and two-nucleon emission, with uncertainty propagated from energy density functionals and ab initio calculations. Erler et al. (2012) estimated $6900 \pm 500$ using six Skyrme functionals. Answer: the count with model uncertainty below 300, and the regions of the chart dominating the uncertainty.
Settled by: Global mass models with Bayesian uncertainty quantification calibrated on drip-line data for Z up to 20.
Kind: well-posed
Answer type: value
References: (empty)
Literature status: open
Status note: (empty)
Posed since: (empty)