Smooth transition from sudden to adiabatic states in deep-subbarrier fusion reactions

Takatoshi Ichikawa, Kouichi Hagino, Akira Iwamoto

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

We propose a novel extension of the standard coupled-channel (CC) model in order to account for the steep falloff of fusion cross sections at deep-subbarrier incident energies. We introduce a damping factor in the coupling potential in the CC model, simulating smooth transitions from sudden to adiabatic states in deep-subbarrier fusion reactions. The CC model extended with the damping factor can reproduce well not only the steep falloff of the fusion cross section but also the saturation of the logarithmic derivatives for the fusion cross sections at deep-subbarier energies for the 16O+208Pb, 64Ni+64Ni and 58Ni+2Ni reactions.

Original languageEnglish
Pages (from-to)269-274
Number of pages6
JournalProgress of Theoretical Physics Supplement
Issue number196
DOIs
Publication statusPublished - 2012

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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