Influence of higher-order deformations in the 34S+ 168Er fusion reaction

C. R. Morton, A. C. Berriman, R. D. Butt, M. Dasgupta, D. J. Hinde, A. Godley, J. O. Newton, K. Hagino

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25 Scopus citations

Abstract

The shape of the measured barrier distribution for the 34S+ 168Er reaction is analyzed using the coupled-channels description. The 168Er nucleus is a good candidate to test current fusion models description of deformation since it has a large quadrupole deformation with an insignificant hexadecapole deformation. Coupling to weaker channels, the 2+1 state in 34S, the 3-1 state in 168Er, and the pair neutron transfer channel, all were found to have little influence on the barrier distribution. A successful description of the barrier distribution was only obtained after the hexacontatetrapole deformation term in 168Er (βT6) was included in the coupling scheme. However, a positive value for βT6 was needed where the macroscopic-microscopic model predicts a negative one.

Original languageEnglish (US)
Article number034604
Pages (from-to)346041-346048
Number of pages8
JournalPhysical Review C - Nuclear Physics
Volume64
Issue number3
DOIs
StatePublished - Sep 2001
Externally publishedYes

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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    Morton, C. R., Berriman, A. C., Butt, R. D., Dasgupta, M., Hinde, D. J., Godley, A., Newton, J. O., & Hagino, K. (2001). Influence of higher-order deformations in the 34S+ 168Er fusion reaction. Physical Review C - Nuclear Physics, 64(3), 346041-346048. [034604]. https://doi.org/10.1103/PhysRevC.64.034604