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Overtones of Isoscalar Giant Resonances in medium-heavy and heavy nuclei

M. L. Gorelik·I. V. Safonov·M. H. Urin
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Abstract

A semi-microscopic approach based on both the continum-random-phase-approximation (CRPA) method and a phenomenological treatment of the spreading effect is extended and applied to describe the main properties (particle-hole strength distribution, energy-dependent transition density, partial direct-nucleon-decay branching ratios) of the isoscalar giant dipole, second monopole, and second quadrupole resonances. Abilities of the approach are checked by description of gross properties of the main-tone resonances. Calculation results obtained for the resonances in a few singly- and doubly-closed-shell nuclei are compared with available experimental data.

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M. L. Gorelik, I. V. Safonov, M. H. Urin. 2003-12-16. Overtones of Isoscalar Giant Resonances in medium-heavy and heavy nuclei. https://doi.org/10.1103/physrevc.69.054322

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