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Entrance channel dependence of back angle yields: orbiting in /sup 24/Mg+/sup 16/O reaction

Technical Report ·
OSTI ID:6129486

The back-angle yields of the oxygen and carbon particles from the /sup 24/Mg+/sup 16/O reaction have been measured at E/sub Lab/(/sup 24/Mg) = 79.5 MeV by using reverse kinematics. Comparison with data for the /sup 28/Si+/sup 12/C reaction forming the same compound nucleus at the same excitation energy and with very similar spin distribution, demonstrates a strong entrance channel effect which is favoring the break-up into the entrance channel with large excitation energy. This result qualitatively supports the picture of the formation of a long-lived orbiting complex whose structure and decay are dependent on the entrance channel. The compound nucleus contribution has been inferred to be less than 15% of the measured oxygen cross-section. 9 references.

Research Organization:
Washington Univ., Seattle (USA). Nuclear Physics Lab.
DOE Contract Number:
AC06-81ER40048
OSTI ID:
6129486
Report Number(s):
DOE/ER/40048-120-L4; ON: DE85007847
Country of Publication:
United States
Language:
English