An Application of the Extended TDHF Method to the 0+ Intruder States in Even Pb Nuclei

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Abstract
As an application of extended TDHF method, the excitation energies of low-lying 0 + intruder states in even-even nuclei are studied. System treated in this paper is schematic one, i.e., the shell-model in which protons move in two single-particle levels and neutrons in a single-particle level. The Hamiltonian consists of the protons pairing interaction and the proton-neutron quadrupole interaction. The system is transcribed in classical mechanics and after certain approximation, requantized. The intruder states very naturally appear within an aligned coupling scheme for the neutrons. Besides a theoretical study of eigenvalues and eigenvectors describing a few proton particle-hole excitations, an application to the Pb region is given.

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