%0 Journal Article %T A Dark Energy Hypothesis VI %A James Togeas %J Journal of High Energy Physics, Gravitation and Cosmology %P 600-606 %@ 2380-4335 %D 2025 %I Scientific Research Publishing %R 10.4236/jhepgc.2025.112042 %X The broad subject is the interaction of dark matter and baryonic matter. The specific problem analyzed is the effect of dark matter on hydrogen recombination in the early universe. The Saha equation governs recombination, and a modified Saha equation describes recombination in the presence of dark matter. Derivation of the latter is in the Appendix. %K Dark Matter %K Recombination %K Saha Equation %U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=142371