Simply put, the predicted abundances of the heavier elements are miniscule compared to the amount generated in stellar processing. The graphs below show the predicted abundances of the heavy elements taken together. The first graph is for a homogeneous BBN, and the second is for inhomogeneous BBN.

The first graph is from TSOF92, and the second is from Thomas et al. 93.

There are many interesting reactions for monte carlo calculations. They are presented by the nucleons involved.

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