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Exploring fusion at extreme sub barrier energies with weakly bound nuclei

Abstract : Results of measurement of residues formed in fusion of 6Li with 198Pt in the energy range of 0.68< E/$V_b$ <1.3 using a new sensitive off-beam technique are reported. The fusion excitation function and the derived average angular momenta do not indicate a change of slope at deep sub-barrier energies, contrary to recent observations. The present results for a system with weakly bound projectile confront the current understanding of the fusion hindrance at these low energies, underlying the role of internal re-organization on the dynamical path towards fusion.
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Submitted on : Thursday, November 26, 2009 - 10:02:32 AM
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A. Shrivastava, A. Navin, A. Lemasson, K. Ramachandran, V. Nanal, et al.. Exploring fusion at extreme sub barrier energies with weakly bound nuclei. Physical Review Letters, American Physical Society, 2009, 103, pp.232702. ⟨10.1103/PhysRevLett.103.232702⟩. ⟨in2p3-00436084⟩

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