Evidence of Double Phonon Excitations in ^{16}O + ^{208}Pb Reaction

Details Evidence of Double Phonon Excitations in ^{16}O + ^{208}Pb Reaction Evidence of Double Phonon Excitations in ^{16}O + ^{208}Pb Reaction

1997-07-14

arxiv.org/abs/nucl-ex/9707004v1

J.Phys.G23:1491-1496,1997

Physics

Nuclear Physics

Nuclear Experiment

6 pages, 2 figures, To be published in the Proceedings of the FUSION 97 Conference, South Durras, Australia, March 1997 (J. Ph

Scientific paper

10.1088/0954-3899/23/10/041

The fusion cross-sections for ^{16}O + ^{208}Pb, measured to high precision, enable the extraction of the distribution of fusion barriers. This shows a structure markedly different from the single-barrier which might be expected for fusion of two doubly-closed shell nuclei. The results of exact coupled channel calculations performed to understand the observations are presented. These calculations indicate that coupling to a double octupole phonon excited state in ^{208}Pb is necessary to explain the experimental barrier distributions.

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