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Non-collective excitations in low-energy heavy-ion reactions: applicability of the random-matrix model

Abstract : We investigate the applicability of a random-matrix model to the description of non-collective excitations in heavy-ion reactions around the Coulomb barrier. To this end, we study fusion in the reaction $^{16}$O + $^{208}$Pb, taking account of the known non-collective excitations in the $^{208}$Pb nucleus. We show that the random-matrix model for the corresponding couplings reproduces reasonably well the exact calculations, obtained using empirical deformation parameters. This implies that the model may provide a powerful method for systems in which the non-collective couplings are not so well known.
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http://hal.in2p3.fr/in2p3-00858836
Contributor : Sophie Heurteau <>
Submitted on : Friday, September 6, 2013 - 10:31:53 AM
Last modification on : Wednesday, September 16, 2020 - 4:08:29 PM

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S. Yusa, K. Hagino, N. Rowley. Non-collective excitations in low-energy heavy-ion reactions: applicability of the random-matrix model. Physical Review C, American Physical Society, 2013, 88, pp.044620. ⟨10.1103/PhysRevC.88.044620⟩. ⟨in2p3-00858836⟩

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