Abstract
Above-barrier fusion cross sections for an isotopic chain of oxygen isotopes with –19 incident on a target are presented. Experimental data are compared with both static and dynamical microscopic calculations. These calculations are unable to explain the increase in the average above-barrier fusion cross section observed for as compared to -stable oxygen isotopes. This result suggests that for neutron-rich nuclei existing time-dependent Hartree-Fock calculations underpredict the role of dynamics at near-barrier energies. High-quality measurement of above-barrier fusion for an isotopic chain of increasingly neutron-rich nuclei provides an effective means to probe this fusion dynamics.
- Received 31 March 2020
- Revised 20 April 2020
- Accepted 26 May 2020
DOI:https://doi.org/10.1103/PhysRevC.101.061601
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