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

Abstract

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.

Phys. Rev. C (accepted)

References in corpus (2)

• Influence of projectile <alpha>- breakup threshold on complete fusion
• Fusion cross sections for 6,7Li + 24Mg reactions at energies below and above the barrier

Cited by in corpus (6)

• Systematic study of breakup effects on complete fusion at energies above the Coulomb barrier
• The total reaction cross section of heavy-ion reactions induced by stable and unstable exotic beams: The low-energy regime
• Complete and incomplete fusion of ${}^7$Li projectiles on heavy targets
• Fusion of ${}^7$Li with ${}^{205}$Tl at near barrier energies
• Large back-angle quasielastic scattering for ${}^7$Li+${}^{159}$Tb
• Systematic investigation of channel coupling effects on elastic, inelastic and neutron transfer channels in ${}^6$Li+${}^{159}$Tb