Spin observables in the quasifree (polarized proton,polarized neutron) reaction at 495 MeV

Theoretical calculations of the spin-isospin response in quasifree nucleon-nucleus scattering predicted a large enhancement in the ratio of the longitudinal to transverse response functions. Measurements using the ;The ;The normalized response functions for ;Theoretical calculations based on two different possible mechanisms are compared with the data. An RPWIA calculation by Horowitz and Piekarewicz shows a suppression of the collective response ratio through introduction of effective nucleon masses. Another method uses a density dependent...