Subbarrier fusion in medium heavy nuclei

Wu, J.Q.; Bertsch, G. F.

doi:10.1016/0375-9474(86)90386-6

Cited by 2 publications

(2 citation statements)

References 11 publications

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“…This model also tends to overpredict the cross sections for fusion of massive nuclei. The domain of validity has been studied by Esbensen et a1 (1983), and by Wu and Bertsch (1986). In the study by Esbensen et a1 a simple expression for the enhancement in fusion due to ZPM was obtained.…”

Section: (34) Romentioning

confidence: 99%

Sub-barrier fusion of two nuclei

Beckerman¹

1988

Rep. Prog. Phys.

306

145

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In 1980 the anomalous sub-barrier fusion of two massive atomic nuclei was discovered. In this review we examine the experimental findings that the cross sections for subbarrier fusion far exceed simple quantum tunnelling expectations, and the magnitude of the excess fusion is particularly sensitive to the valence structure of the collision partners. The phenomenon is interpreted as one which occurs when intrinsic degrees of freedom of the dinuclear system couple to the tunnelling degree of freedom. Several models, developed during the period from 1983-5, serve to illustrate the salient features of coupling-aided barrier penetration. We discuss the nature of the couplings and the underlying dynamics, focusing our attention on the quasi-elastic channels (inelastic scattering and nucleon transfer). Results of studies on quasi-elastic scattering and of the fusion partial-wave distributions, completed during the past three years, are then presented.

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Section: (34) Romentioning

confidence: 99%

Sub-barrier fusion of two nuclei

Beckerman¹

1988

Rep. Prog. Phys.

306

145

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“…Fusion of two nuclei is impacted both by the structure of the two nuclei as well as the dynamics of the fusion process. While for heavy nuclei the role of collective modes during the fusion process is well established [13], the fusion of light nuclei near β-stability is reasonably well described without inclusion of significant fusion * Electronic address: desouza@indiana.edu dynamics. Investigating fusion using an isotopic chain of projectile nuclei provides a unique opportunity.…”

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confidence: 99%

Enhancement of fusion at near and sub-barrier energies for neutron-rich light nuclei

Singh,

Vadas,

Steinbach

et al. 2016

Preprint

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Background Measurement of the fusion cross-section for neutron-rich light nuclei is crucial in ascertaining if fusion of these nuclei occurs in the outer crust of a neutron star. Purpose To measure the fusion excitation function at near-barrier energies for the 19 O + 12 C system and compare the experimental results with the fusion excitation function of 18 O + 12 C and 16 O + 12 C. Method A beam of 19 O, produced via the 18 O(d,p) reaction, was incident on a 12 C target at energies near the Coulomb barrier. Evaporation residues produced in fusion of 18,19 O ions with 12 C target nuclei were detected with good geometric efficiency and identified by measuring their energy and time-of-flight. Results A significant enhancement in the fusion probability of 19 O ions with a 12 C target as compared to 18 O ions is observed. Conclusion The significantly larger cross-sections observed at near barrier energies are not predicted by a static model of fusion for 19 O + 12 C indicating that dynamics play an important role in the fusion of neutron-rich light nuclei.

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Subbarrier fusion in medium heavy nuclei

Cited by 2 publications

References 11 publications

Sub-barrier fusion of two nuclei

Sub-barrier fusion of two nuclei

Enhancement of fusion at near and sub-barrier energies for neutron-rich light nuclei

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