Fusion of $^{6}$Li with $^{159}$Tb} at near barrier energies

Details Fusion of $^{6}$Li with $^{159}$Tb} at near barrier energies Fusion of $^{6}$Li with $^{159}$Tb} at near barrier energies

2011-06-10

arxiv.org/abs/1106.2043v1

Phys.Rev.C83:064606,2011

Physics

Nuclear Physics

Nuclear Experiment

Phys. Rev. C (accepted)

Scientific paper

10.1103/PhysRevC.83.064606

Complete and incomplete fusion cross sections for $^{6}$Li+$^{159}$Tb have been measured at energies around the Coulomb barrier by the $\gamma$-ray method. The measurements show that the complete fusion cross sections at above-barrier energies are suppressed by $\sim$34% compared to the coupled channels calculations. A comparison of the complete fusion cross sections at above-barrier energies with the existing data of $^{11,10}$B+$^{159}$Tb and $^{7}$Li+$^{159}$Tb shows that the extent of suppression is correlated with the $\alpha$-separation energies of the projectiles. It has been argued that the Dy isotopes produced in the reaction $^{6}$Li+$^{159}$Tb, at below-barrier energies are primarily due to the $d$-transfer to unbound states of $^{159}$Tb, while both transfer and incomplete fusion processes contribute at above-barrier energies.

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