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

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

2008-08-06

arxiv.org/abs/0808.0800v1

Phys.Rev.C78:027601,2008

Physics

Nuclear Physics

Nuclear Experiment

4 pages,3 figures, submitted to Physical Review C

Scientific paper

10.1103/PhysRevC.78.027601

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.

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