Finite temperature nuclear response in the extended random phase approximation
Physical Review C1998Vol. 58(4), pp. 2154–2160
Citations Over TimeTop 10% of 1998 papers
Abstract
The nuclear collective response at finite temperature is investigated for the first time in the quantum framework of the small amplitude limit of the extended time-dependent Hartree-Fock approach, including a non-Markovian collision term. It is shown that the collision width satisfies a secular equation. By employing a Skyrme force, the isoscalar monopole, isovector dipole, and isoscalar quadrupole excitations in ${}^{40}\mathrm{Ca}$ are calculated and important quantum features are pointed out. The collisional damping due to decay into incoherent two-particle--two-hole states is small at low temperatures but increases rapidly at higher temperatures.
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