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 CX≡nX/nB in the range of 3×10^-8 to 3×10^-13 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≥200 over much of the MX range of interest, and address the relative abundance of such anomalous nuclei on Earth.