Fusion dynamics around the Coulomb barrier

K. Hagino, N. Rowley, T. Ohtsuki, M. Dasgupta, J. O. Newton, D. J. Hinde

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We perform exact coupled-channels calculations, taking into account properly the effects of Coulomb coupling and the finite excitation energy of collective excitations in the colliding nuclei, for three Fm formation reactions, 37Cl + 209Bi, 45Sc + 197Au, and 59Co + 181Ta. For the 37Cl + 209Bi and 45Sc + 197Au reactions, those calculations well reproduce the experimental total fission cross sections, and a part of the extra-push phenomena can be explained in terms of the Coulomb excitations to multi-phonon states. On the other hand, for the heaviest system, the deep-inelastic collisions become much more significant, and the fission cross sections are strongly overestimated. We also discuss the surprisingly large surface diffuseness parameters required to fit recent high-precision fusion data for medium-heavy systems, in connection with the fusion supression observed in massive systems.

Original languageEnglish
Title of host publicationTours Symposium on Nuclear Physics V; Tours 2003
EditorsT. Wada, G. Munzenberg, M. Arnould, M. Ohta, T. Yamagata, M. Lewitowicz, H. Utsunomiya, H. Akimune
PublisherAmerican Institute of Physics Inc.
Pages82-91
Number of pages10
ISBN (Print)0735401772
DOIs
Publication statusPublished - 2004 Apr 12
EventTours Symposium on Nuclear Physics V; Tours 2003 - Tours, France
Duration: 2003 Aug 262003 Aug 29

Publication series

NameAIP Conference Proceedings
Volume704
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

OtherTours Symposium on Nuclear Physics V; Tours 2003
CountryFrance
CityTours
Period03/8/2603/8/29

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Fingerprint Dive into the research topics of 'Fusion dynamics around the Coulomb barrier'. Together they form a unique fingerprint.

Cite this