2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/206772We report on a study of the longitudinal to transverse cross section ratio, $R=σ_L/σ_T$, at low values of $x$ and $Q^{2}$, as determined from inclusive inelastic electron-hydrogen and electron-deuterium scattering data from Jefferson Lab Hall C spanning the four-momentum transfer range 0.06 $ < Q^{2} < 2.8$ GeV$^{2}$. Even at the lowest values of $Q^{2}$, $R$ remains nearly constant and does not disappear with decreasing $Q^{2}$, as expected. We find a nearly identical behaviour for hydrogen and deuterium.4 pages, 2 giguresNuclear Experimenttext