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Heavy-ion fusion: Channel-coupling effects, the barrier penetration model, and the threshold anomaly for heavy-ion potentials by G.R. Satchler; M.A. Nagarajan; J.S. Lilley; I.J. Thompson is a Physics and Astronomy article available to read on EtoBox.

What is Heavy-ion fusion: Channel-coupling effects, the barrier penetration model, and the threshold anomaly for heavy-ion potentials about?

We study the formal structure of the influence of channel coupling on near-and sub-barrier fusion. The reduction to a one-channel description is studied, with emphasis on the channelcoupling effects being manifest primarily as an energy dependence (the "threshold anomaly") of the real nuclear potential. The relation to the barrier penetration model is examined critically. The results of large-scale coupled-channel calculations are used as "data" to illustrate the discussion. Particular emphasis is placed on the importance of reproducing correctly the partial-wave (or "spin") distributions. The simple barrier penetration model is found to be adequate to exhibit the strong enhancements due to channel couplings when the threshold anomaly is taken into account, although there may be important corrections due to the long-ranged peripheral absorption, especially from Coulomb excitation.

Who reads Heavy-ion fusion: Channel-coupling effects, the barrier penetration model, and the threshold anomaly for heavy-ion potentials?

Author

G.R. Satchler; M.A. Nagarajan; J.S. Lilley; I.J. Thompson

Publisher

Elsevier Science; Elsevier ; Elsevier Inc.; Elsevier BV (ISSN 0003-4916)

Published

1987

Language

EN

Field

Physics and Astronomy (Physical Sciences)