Systematics of carbon- and oxygen-induced fusion on nuclei with 12A19

D. G. Kovar, D. F. Geesaman, T. H. Braid, Y. Eisen, W. Henning, T. R. Ophel, M. Paul, K. E. Rehm, S. J. Sanders, P. Sperr, J. P. Schiffer, S. L. Tabor, S. Vigdor, B. Zeidman, F. W. Prosser

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Abstract

Measurements of the total fusion cross sections for C12 + C12, C13, N14, N15, O16, O18, and F19 and O16 + O16 have been performed over the energy range from 1.5 to 3 times the Coulomb barrier energy. Fusion barrier parameters were extracted for each system. Three systems, C12 + C12, C12 + O16, and O16 + O16, show rather pronounced oscillatory structure in the energy dependence of the fusion cross sections. The maximum fusion cross sections for the systems studied vary by as much as 10-20%, depending on the particular entrance channel. The specific structure of the interacting nuclei clearly does have an effect; the fusion process is not entirely dominated by the macroscopic features of the ion-ion interaction. NUCLEAR REACTIONS, fusion, measured fusion(E); C12 + C12, 7.4<~Ec.m.<~31.2 MeV; C12 + C13, 7.6<~Ec.m.<~24.9 MeV; C12 + N14, 15.1<~Ec.m.<~24.0 MeV; C12 + N15, 8.9<~Ec.m.<~26.7 MeV; C12 + O16, 12.9<~Ec.m.<~27.0 MeV; C12 + O18, 11.9<~Ec.m.<~28.0 MeV; C12 + F19, 11.6<~Ec.m.<~27.1 MeV; O16 + O16, 14.9<~Ec.m.<~36.0 MeV; deduced fusion barrier parameters.

Original languageEnglish
Pages (from-to)1305-1331
Number of pages27
JournalPhysical Review C - Nuclear Physics
Volume20
Issue number4
DOIs
StatePublished - 1979
Externally publishedYes

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