Scaling in the quasielastic response of atomic nuclei

Abstract The separated quasielastic response functions of electron-nucleon scattering in 12 C and 40 Ca are studied in the context of y -scaling within the σωρ-model. A different scaling behaviour of the longitudinal and transverse channels is observed, i.e. the longitudinal channel is strongly quenched compared to the transverse one. This effect, which is in contradiction to the impulse approximation, can be traced to the interactions of the nucleons inside the nucleus. The y -scaling, observed experimentally, is well reproduced in this model.