Neutron-excess dependence of fusion-Ni+Sn

W. S. Freeman, H. Ernst, D. F. Geesaman, W. Henning, T. J. Humanic, W. Kühn, G. Rosner, J. P. Schiffer, B. Zeidman, F. W. Prosser

Research output: Contribution to journalArticlepeer-review

76 Scopus citations


Excitation functions (Elab=235-320 MeV) for producing nuclei close to the compound system (evaporation residues) were measured for Ni58,64+ Sn112-124, corresponding to a 20% variation in the compound-nucleus neutron number. A dramatic, order-of-magnitude increase was observed in the maximum cross section as a function of the compound-nucleus neutron neutron excess. The subbarrier energy dependence of the cross sections is well described by an optical-model calculation, but not by the frequently used parabolic approximation.

Original languageEnglish (US)
Pages (from-to)1563-1566
Number of pages4
JournalPhysical Review Letters
Issue number20
StatePublished - 1983
Externally publishedYes

ASJC Scopus subject areas

  • General Physics and Astronomy


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