Breakup of $^{17}$F on $^{208}$Pb near the Coulomb barrier
J. F. Liang, J. R. Beene, A.Galindo-Uribarri, J. Gomez del Campo, C., J. Gross, P. A. Hausladen, P. E. Mueller, D. Shapira, D. W. Stracener, R. L., Varner, J. D. Bierman, H. Esbensen, Y. Larochelle
TL;DR
This study measures the breakup of $^{17}$F on $^{208}$Pb near the Coulomb barrier, showing that breakup cross sections are significantly lower than fusion cross sections and are well explained by dynamical models.
Contribution
It provides experimental angular distributions and compares breakup and fusion cross sections, highlighting the role of breakup in fusion suppression near the Coulomb barrier.
Findings
Breakup cross section is about one-third of fusion cross section at 98 MeV.
Data are dominated by proton stripping mechanism.
Dynamical calculations successfully reproduce the measured distributions.
Abstract
Angular distributions of oxygen produced in the breakup of F incident on a Pb target have been measured around the grazing angle at beam energies of 98 and 120 MeV. The data are dominated by the proton stripping mechanism and are well reproduced by dynamical calculations. The measured breakup cross section is approximately a factor of 3 less than that of fusion at 98 MeV. The influence of breakup on fusion is discussed.
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Taxonomy
TopicsAtomic and Subatomic Physics Research · Quantum Chromodynamics and Particle Interactions · Nuclear Physics and Applications