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A complete calculation is needed to decide.","posed_since":"","precise":"Compute internal pair creation e+ e- angular correlations for the $8\\mathrm{Be}$ $18.15\\,\\mathrm{MeV}$ ($M1$), $4\\mathrm{He}$ $20.21\\,\\mathrm{MeV}$ ($E0$ and $M0$) and $12\\mathrm{C}$ $17.23\\,\\mathrm{MeV}$ transitions including interference of $E0$, $E1$ and $M1$ multipoles, direct-capture components and ab initio transition form factors, and determine whether they produce peaks near 140 degrees ($8\\mathrm{Be}$) or 115 degrees ($4\\mathrm{He}$) of the observed size. Answer: yes or no, with the predicted angular distributions.","problem_ref":null,"references":"","settled_by":"Full-multipole calculations with ab initio form factors compared bin by bin with ATOMKI and MEG II angular distributions after detector simulation.","status_note":"","title":"Can standard nuclear physics produce the ATOMKI angular 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