Effects of anharmonic vibration on large-angle quasi-elastic scattering of O16+Sm144

Muhammad Zamrun F., K. Hagino

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

We study the effects of double octupole and quadrupole phonon excitations in the Sm144 nucleus on quasi-elastic O16+Sm144 scattering at backward angles. To this end, we use the coupled-channels framework, taking into account explicitly the anharmonicities of the vibrations. We use the same coupling scheme as that previously employed to explain the experimental data of sub-barrier fusion cross sections for the same system. We show that the experimental data for the quasi-elastic cross sections are well reproduced in this way, although the quasi-elastic barrier distribution has a distinct high energy peak which is somewhat smeared in the experimental barrier distribution. We also discuss the effects of proton transfer on the quasi-elastic barrier distribution. Our study indicates that the fusion and quasi-elastic barrier distributions for this system cannot be accounted for simultaneously with the standard coupled-channels approach.

Original languageEnglish
Article number014606
JournalPhysical Review C - Nuclear Physics
Volume77
Issue number1
DOIs
Publication statusPublished - 2008 Jan 11

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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