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Is the Coulomb sum rule violated in nuclei?

J. Morgenstern·Z. E. Meziani
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Abstract

Guided by the experimental confirmation of the validity of the Effective Momentum Approximation (EMA) in quasi-elastic scattering off nuclei, we have re-examined the extraction of the longitudinal and transverse response functions in medium-weight and heavy nuclei. In the EMA we have performed a Rosenbluth separation of the available world data on $^{40}$Ca, $^{48}$Ca, $^{56}$Fe, $^{197}$Au, $^{208}$Pb and $^{238}$U. We find that the longitudinal response function for these nuclei is "quenched" and that the Coulomb sum is not saturated, at odds with claims in the literature.

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J. Morgenstern, Z. E. Meziani. 2001-06-26. Is the Coulomb sum rule violated in nuclei?. https://doi.org/10.1016/s0370-2693(01)00873-5

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