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Longitudinal-Transverse Separations of Structure Functions at Low $Q^{2}$ for Hydrogen and Deuterium

V. Tvaskis
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Abstract

We 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.

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V. Tvaskis. 2006-11-13. Longitudinal-Transverse Separations of Structure Functions at Low $Q^{2}$ for Hydrogen and Deuterium. https://doi.org/10.1103/physrevlett.98.142301

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