Effects of [Formula Presented] deformation and low-lying vibrational bands on heavy-ion fusion reactions at sub-barrier energies

Tamanna Rumin, Kouichi Hagino, Noboru Takigawa

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

We study fusion reactions of [Formula Presented] with [Formula Presented] and [Formula Presented] at sub-barrier energies by a coupled-channels framework. We focus especially on the effects of [Formula Presented] deformation and low-lying vibrational excitations of the target nucleus. It is shown that the inclusion of [Formula Presented] deformation leads to a considerable improvement of the fit to the experimental data for all of these reactions. For the [Formula Presented] and [Formula Presented] targets, the octupole vibration significantly affects the fusion barrier distribution and the optimum values of the deformation parameters. The effect of [Formula Presented] band is negligible in all the three reactions, while the [Formula Presented] band causes a non-negligible effect on the barrier distribution at energies above the main fusion barrier. We compare the optimum values of the deformation parameters obtained by fitting the fusion data with those obtained from inelastic scatterings and the ground state mass calculations. We show that the channel coupling of high multipolarity beyond the quadrupole coupling is dominated by the nuclear coupling and hence higher order Coulomb coupling does not much influence the optimum values of [Formula Presented] and [Formula Presented] parameters. We also discuss the effect of two neutron transfer reactions on the fusion of [Formula Presented] with [Formula Presented].

Original languageEnglish
Number of pages1
JournalPhysical Review C - Nuclear Physics
Volume61
Issue number1
DOIs
Publication statusPublished - 2000 Jan 1
Externally publishedYes

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Fingerprint Dive into the research topics of 'Effects of [Formula Presented] deformation and low-lying vibrational bands on heavy-ion fusion reactions at sub-barrier energies'. Together they form a unique fingerprint.

  • Cite this