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arXiv · 1411.3418

Emergent Soft Monopole Modes in Weakly-Bound Deformed Nuclei

J. C. Pei·M. Kortelainen·Y. N. Zhang·F. R. Xu
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Abstract

Based on the Hartree-Fock-Bogoliubov solutions in large deformed coordinate spaces, the finite amplitude method for quasiparticle random phase approximation (FAM-QRPA) has been implemented, providing a suitable approach to probe collective excitations of weakly-bound nuclei embedded in the continuum. The monopole excitation modes in Magnesium isotopes up to the neutron drip line have been studied with the FAM-QRPA framework on both the coordinate-space and harmonic oscillator basis methods. Enhanced soft monopole strengths and collectivity as a result of weak-binding effects have been unambiguously demonstrated.

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J. C. Pei, M. Kortelainen, Y. N. Zhang, F. R. Xu. 2014-11-13. Emergent Soft Monopole Modes in Weakly-Bound Deformed Nuclei. https://doi.org/10.1103/physrevc.90.051304

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