Sub-barrier fusion excitation for the system ${}^7$Li+${}^{28}$Si

Abstract

The sub-barrier fusion excitation functions are measured for the first time for the system ${}^7$Li +${}^{28}$Si by the characteristic $\gamma$-ray method in the energy range $E_{lab}$= 7-11.5 MeV. The results show an enhancement, below the barrier, by about a factor of two when compared with the one-dimensional barrier penetration (1D BPM) model. Introduction of coupling with the rotational 2${}^{+}$ state (1.779MeV) of the target improves the fit somewhat, but still an enhancement of about 25-40% remains.

arXiv comment4 pages,3 figures, submitted to Physical Review C

References in corpus (7)

• A program for coupled-channels calculations with all order couplings for heavy-ion fusion reactions
• Fusion versus Breakup: Observation of Large Fusion Suppression for ^9Be + ^{208}Pb
• Role of break-up processes in fusion enhancement of drip-line nuclei at energies below the Coulomb barrier
• Breakup Threshold Anomaly: New Manifestation of the Dispersion Relation
• Effect of the break-up on the fusion and elastic scattering of weakly bound projectiles on ${}^{64}$Zn
• Evidence for transfer followed by breakup in 7Li + 65Cu
• Fusion cross sections at deep subbarrier energies

Cited by in corpus (5)

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• Decay analysis of compound nuclei with mass A$\sim 30-200$ formed in the reactions involving loosely bound projectiles
• Transfer/Breakup Channel Couplings in Sub-barrier Fusion Reactions
• Coupled-Channel Effects in Collisions between Heavy Ions near the Coulomb Barrier