Sub- and above barrier fusion of loosely bound $^6$Li with $^{28}$Si

Details Sub- and above barrier fusion of loosely bound $^6$Li with $^{28}$Si Sub- and above barrier fusion of loosely bound $^6$Li with $^{28}$Si

2010-05-07

arxiv.org/abs/1005.1137v1

Physics

Nuclear Physics

Nuclear Experiment

8 pages, 6 figures, as accepted for publication in Eur.Phys.J.A

Scientific paper

Fusion excitation functions are measured for the system $^6$Li+$^{28}$Si using the characteristic $\gamma$-ray method, encompassing both the sub-barrier and above barrier regions, viz., $E_{lab}$= 7-24 MeV. Two separate experiments were performed, one for the above barrier region ($E_{lab}$= 11-24 MeV) and another for the below barrier region ($E_{lab}$= 7-10 MeV). The results were compared with our previously measured fusion cross section for the $^7$Li+$^{28}$Si system. We observed enhancement of fusion cross section at sub-barrier regions for both $^6$Li and $^7$Li, but yield was substantially larger for $^6$Li. However, for well above barrier regions, similar type of suppression was identified for both the systems.

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