Nucleosynthesis Constraints on Massive, Stable, Strongly Interacting Particles

We find constraints on heavy, stable, strongly interacting massive particles ( $X$) from searches for anomalous nuclei containing them, formed during primordial nucleosynthesis. Using existing data, we obtain a limit on the abundance ratio $C_X\equiv n_X{/n}_B$ in the range of $3\times {10}^{-8\mathrm{}}$ to $3\times {10}^{-13\mathrm{}}$ for masses up to 10 TeV if the $X-N$ interaction is sufficiently strong to bind in low $Z$ nuclei. We also find a rough lower limit on the $X-N$ interaction that implies binding in nuclei with $A\ge 200$ over much of the $M_X$ range of interest, and address the relative abundance of such anomalous nuclei on Earth.