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Role of non-collective excitations in subbarrier fusion reactions

Abstract : We carry out a large scale coupled-channels calculations in order to discuss the effect of non-collective excitations on heavy-ion fusion and quasi-elastic scattering at subbarrier energies. To this end, we take into account all the states in 208Pb below 7 MeV, which were previously identified with a high resolution proton inelastic scattering measurement. Our calculations indicate that the energy dependence of the fusion and quasi-elastic cross sections are not altered much due to the non-collective coupling, although the peak structure in the barrier distributions is slightly smeared. We also show that our calculations well reproduce the energy dependence of the Q-value distribution for backward quasi-elastic scattering.
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Contributor : Sophie Heurteau Connect in order to contact the contributor
Submitted on : Friday, February 8, 2013 - 10:37:57 AM
Last modification on : Wednesday, September 16, 2020 - 4:08:32 PM

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K. Hagino, S. Yusa, N. Rowley. Role of non-collective excitations in subbarrier fusion reactions. 5th International Conference FUSION11, May 2011, Saint-Malo, France. pp.11002, ⟨10.1051/epjconf/20111711002⟩. ⟨in2p3-00786233⟩



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