Resonant behavior of the Mg24(O16, C12)Si28* (6.4Ex10 MeV) reaction

S. J. Sanders, C. Olmer, D. F. Geesaman, W. Henning, D. G. Kovar, M. Paul, and J. P. Schiffer
Phys. Rev. C 22, 1914 – Published 1 November 1980
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Abstract

Excitation functions have been measured for the Mg24(O16, C12)Si28 reaction populating states in Si28 with 6.4Ex10 MeV over the energy range 24Ec.m.36 MeV. At each incident beam energy, cross sections were measured at three angles over the range 17°θc.m.21°. More complete angular distributions with 10°θc.m.50° were measured at Ec.m.=30.5 and 32.6 MeV. Resonance-like structures are observed in the excitation functions and strongly correlate with those seen previously at forward angles for the Mg24(O16, C12)Si28(g.s.) transition. Estimates are made for the partial decay widths of the resonance at Ec.m.=30.8 MeV to the excited states in Si28. Using different background assumptions, between 5% and 40% of the total width of this resonance can be atrributed to C12+Si28* (Ex<10 MeV) decays.

NUCLEAR REACTIONS Mg24(O16, C12)Si28* (6.4<~Ex<~10 MeV); 24<~Ec.m.<~36 MeV; measured σ(E, θ); DWBA analysis; deduced partial widths.

  • Received 16 June 1980

DOI:https://doi.org/10.1103/PhysRevC.22.1914

©1980 American Physical Society

Authors & Affiliations

S. J. Sanders, C. Olmer*, D. F. Geesaman, W. Henning, D. G. Kovar, M. Paul, and J. P. Schiffer

  • Argonne National Laboratory, Argonne, Illinois 60439

  • *Present address: Physics Department, Indiana University, Bloomington, Indiana 47401.
  • Present address: Racah Institute of Physics, The Hebrew University of Jerusalem, Israel.

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Vol. 22, Iss. 5 — November 1980

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