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| Title
| - (Multi-)nucleon transfer in the reactions 16O, 32S+ 208Pb
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| Abstract
| - A detailed analysis of the projectile-like fragments detected at backward angles in the reactions 16O, 32 S+ 208Pb at energies below the fusion barrier is presented. Excitation functions corresponding to nucleon transfer with ∆Z = 1 and ∆Z = 2 were extracted, indicating surprisingly large absolute probabilities at subbarrier energies. A comparison of 2 p transfer probabilities with time-dependent Hartree-Fock calculations suggests strong pairing correlations between the two protons. Excitation energies in the projectile-like fragments ~15 MeV and ~25 MeV for the 16O and 32S-induced reactions, respectively, indicate the population of highly excited states in the residual nuclei. A comparison with expected optimum Q-values suggests large losses in kinetic energy of the projectile-like fragments. These highly inelastic (large excitation energies) and complex (correlated few-nucleon transfer) processes may be closely related to the depletion of fusion through tunnelling at sub-barrier energies.
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| - © Owned by the authors, published by EDP Sciences, 2011
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| - Owned by the authors, published by EDP Sciences
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