Quasielastic Electron Scattering from Nuclei: Random-Phase vs. Ring Approximations
Eduardo Bauer, Antonio M. Lallena
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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