Interplay of static and dynamic effects in 6He+ 238U Fusion

Details Interplay of static and dynamic effects in 6He+ 238U Fusion Interplay of static and dynamic effects in 6He+ 238U Fusion

2003-07-17

arxiv.org/abs/nucl-th/0307074v1

Physics

Nuclear Physics

Nuclear Theory

13 pages, 4 figures

Scientific paper

10.1103/PhysRevC.68.054614

We investigate the influence of the neutron halo and the breakup channel in 6He + 238U fusion at near-barrier energies. To include static effects of the 2n-halo in 6He nuclei, we use a single-folding potential obtained from an appropriate nucleon-238U interaction and a realistic 6He density. Dynamical effects arising from the breakup process are then included through coupled-channel calculations. These calculations suggest that static effects dominate the cross section at energies above the Coulomb barrier, while the sub-barrier fusion cross section appears to be determined by coupling to the breakup channel. This last conclusion is uncertain due to the procedure employed to measure the fusion cross-section.

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