Effects of finite width of excited states on heavy-ion sub-barrier fusion reactions

K. Hagino, N. Takigawa

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)

Abstract

We discuss the effects of coupling of the relative motion to nuclear collective excitations which have a finite lifetime on heavy-ion fusion reactions at energies near and below the Coulomb barrier. Both spreading and escape widths are explicitly taken into account in the exit doorway model. The coupled-channels equations are numerically solved to show that the finite resonance width always hinders fusion cross sections at sub-barrier energies irrespective of the relative importance between the spreading and the escape widths. We also show that the structure of fusion barrier distribution is smeared due to the spreading of the strength of the doorway state.

Original languageEnglish
Pages (from-to)2872-2878
Number of pages7
JournalPhysical Review C - Nuclear Physics
Volume58
Issue number5
DOIs
Publication statusPublished - 1998
Externally publishedYes

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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