Adiabatic quantum tunneling in heavy-ion sub-barrier fusion

K. Hagino, N. Takigawa, M. Dasgupta, D. J. Hinde, J. R. Leigh

Research output: Contribution to journalArticlepeer-review

95 Citations (Scopus)

Abstract

The measured fusion barrier distributions for 40Ca + 192Os, 194Pt show significant features due to projectile excitation, while none are seen for 16O + 144Sm. This conflict is reconciled using realistic coupled-channel calculations, which show that the higher excitation energy of the 3 state in 16O produces an adiabatic potential renormalization, without affecting the structure in the barrier distribution. This result indicates that adiabatic effects restrict, in a natural way, the states which influence the shape of a fusion barrier distribution.

Original languageEnglish
Pages (from-to)2014-2017
Number of pages4
JournalPhysical review letters
Volume79
Issue number11
DOIs
Publication statusPublished - 1997 Sep 15
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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