Abstract
An extended time-dependent Hartree-Fock theory which includes the effects of nucleon-nucleon collisions is presented and applied to the small-amplitude quadrupole motions of16O and40Ca. The collision term of the theory includes not only the Born term but also higher-order terms. It is found that the higher-order terms are essential to the damping of the motions.
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This work was supported by the U.S. National Science Foundation. Part of the numerical calculations were performed with the Cray-XMP at NCSA in Illinois, U.S.A.