Abstract
We study the influence of the proton-neutron correlations, in particular of the tensor ones, on the longitudinal nuclear response. They generate a high-energy tail that we evaluate. We show that this tail produces an apparent quenching of the Coulomb sum rule. The amount of quenching found is significant, although insufficient to explain the totality of the missing strength.
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References
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Supported by Deutsche Forschungsgemeinschaft (SFB 201).
We are grateful to P. Carlos, J.M. Laget and S. Platchkov for useful informations. One of us (G.O.) would like to thank the Cern theory division for hospitality.