EPJ Web of Conferences
Volume 63, 2013Heavy Ion Accelerator Symposium 2013
|Number of page(s)||4|
|Published online||19 December 2013|
Effect of Two-neutron Transfer with Positive Q-value on Sub-barrier Fusion
China Institute of Atomic Energy, P. O. Box 275(10), Beijing 102413, China
a e-mail: email@example.com
Published online: 19 December 2013
Fusion cross sections with high precision have been measured for the 16O+76Ge and 18O+74Ge systems at energies near and below the Coulomb barrier. Coupled-channels calculations including inelastic excitations well reproduce the experimental fusion excitation functions and the corresponding barrier distributions. There is no evidence that the positive Q-value two-neutron transfer plays a role in the fusion process. Systematic investigations of 18O induced fusions, whose data are available in the literature, have been performed to understand the role of two-neutron transfers with positive Q-values in the fusion process, but results are inconsistent and no conclusion can be made. The effect of two-neutron transfer with positive Q-value on sub-barrier fusion is still an open question, which becomes a challenge and requires further efforts both experimentally and theoretically.
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