Quasielastic Electron Scattering from Nuclei: Random-Phase vs. Ring Approximations
Abstract
We investigate the extent to which the nuclear transverse response to electron scattering in the quasielastic region, evaluated in the random-phase approximation can be described by ring approximation calculations. Different effective interactions based on a standard model of the type g'+Vpi+Vrho are employed. For each momentum transfer, we have obtained the value of g'0 permitting the ring response to match the position of the peak and/or the non-energy weighted sum rule provided by the random-phase approach has been obtained. It is found that, in general, it is not possible to reproduce both magnitudes simultaneously for a given g'0 value.
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