2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/174966Based on the standard cosmological model, we calculate the correction to the rate of two-photon 2s<->1s transitions in the hydrogen atom under primordial hydrogen plasma recombination conditions that arises when the induced transitions under equilibrium background radiation with a blackbody spectrum and plasma recombination radiation are taken into account.20 pages, 9 figuresAstrophysicstext