Abstract
proton-neutron pair-addition and pair-removal strengths in and are investigated by means of the particle-particle random-phase approximation employing a Skyrme energy-density functional. It is found that the collectivity of the lowest state in the adjacent odd-odd nuclei becomes stronger as the strength of the isoscalar pairing interaction increases. The results suggest the emergence of the -pairing vibrational mode as a possible critical phenomenon toward the pairing condensation.
- Received 15 April 2014
- Revised 7 July 2014
DOI:https://doi.org/10.1103/PhysRevC.90.031303
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