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Reaction cross sections for O16 + O16

J. J. Kolata, R. C. Fuller, R. M. Freeman, F. Haas, B. Heusch, and A. Gallmann
Phys. Rev. C 16, 891(R) – Published 1 August 1977
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Abstract

The total fusion cross section σf for O16 + O16 has been measured in 500 keV steps between 12.5 and 30.5 MeV c.m. energy via γ-ray techniques. The excitation function for σf shows clear evidence of periodic structure between 14 and 28 MeV (c.m.), as predicted by the optical model. These oscillations are out of phase with those observed in 90° elastic scattering. Individual yields of 12 nuclides formed in the reaction were also obtained. The narrow (Γ<1 MeV) resonance at Ec.m.=26.5 MeV, which is correlated in the Ne20 and O16 (3) channels, is suggested to be an "α-exchange" resonance.

NUCLEAR REACTIONS O16 + O16 12.5-30.5 MeV (c.m.); measured excitation functions for production of A=1631 reaction products; deduced evidence for broad shape resonances, and a narrow resonance at Ec.m.=26.5 MeV.

  • Received 21 April 1977

DOI:https://doi.org/10.1103/PhysRevC.16.891

©1977 American Physical Society

Authors & Affiliations

J. J. Kolata and R. C. Fuller*

  • Brookhaven National Laboratory, Upton, New York 11973

R. M. Freeman, F. Haas, B. Heusch, and A. Gallmann

  • Centre de Recherches Nucléaires, 67037 Strasbourg, France

  • *Work supported by Energy Research and Development Administration.

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Vol. 16, Iss. 2 — August 1977

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