Comparison of fusion cross sections for the B10 + O16 and C12 + N14 systems

J. Gomez del Campo, J. A. Biggerstaff, R. A. Dayras, D. Shapira, A. H. Snell, P. H. Stelson, and R. G. Stokstad
Phys. Rev. C 29, 1722 – Published 1 May 1984
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Abstract

The fusion cross sections for the B10 + O16 and C12 + N14 systems are compared for bombarding energies up to 18 MeV/nucleon. The energy spectra, angular distributions, and relative yields of the evaporation residues are analyzed in terms of simple kinematic considerations and Hauser-Feshbach calculations. Simultaneous determinations of mass, charge, and energy and two particle coincidence measurements at E14N=13 MeV/nucleon support the identification of evaporation residues based on inclusive measurements of Z and E alone. The gross characteristics of the residues are consistent with the main process being complete fusion followed by equilibrium decay. The excitation functions of the B10 + O16 and C12 + N14 systems show significant differences which cannot be explained in terms of simple macroscopic models. At the highest bombarding energies the fusion cross sections decrease as 1Ec.m. for both systems and are consistent with a maximum angular momentum limit of 27.

  • Received 2 September 1983

DOI:https://doi.org/10.1103/PhysRevC.29.1722

©1984 American Physical Society

Authors & Affiliations

J. Gomez del Campo, J. A. Biggerstaff, R. A. Dayras*, D. Shapira, A. H. Snell, P. H. Stelson, and R. G. Stokstad

  • Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830

  • *Present address: Centre d'Etudes Nucléaires de Saclay, 91191 Gif-sur-Yvette Cedex, France.
  • Present address: Lawrence Berkeley Laboratory, Berkeley, California 94704.

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Vol. 29, Iss. 5 — May 1984

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