Importance of Non-Linear Couplings in Fusion Barrier Distributions and Mean Angular Momenta

Details Importance of Non-Linear Couplings in Fusion Barrier Distributions and Mean Angular Momenta Importance of Non-Linear Couplings in Fusion Barrier Distributions and Mean Angular Momenta

1997-06-28

arxiv.org/abs/nucl-th/9706083v1

J.Phys.G23:1413-1422,1997

Physics

Nuclear Physics

Nuclear Theory

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

Scientific paper

10.1088/0954-3899/23/10/031

The effects of higher order coupling of surface vibrations to the relative motion on heavy-ion fusion reactions at near-barrier energies are investigated. The coupled channels equations are solved to all orders, and also in the linear and the quadratic coupling approximations. It is shown that the shape of fusion barrier distributions and the energy dependence of the average angular momentum of the compound nucleus can significantly change when the higher order couplings are included. The role of octupole vibrational excitation of ^{16}O in the ^{16}O + ^{144}Sm fusion reaction is also discussed using the all order coupled-channels equations.

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