Fusion of Halo Nuclei Andrew LaJoie May 8 2015 PHY 802 The Title The Quandary Effect of Halo Structure on Fusion cross section Enhancement Suppression Different Domains SubCoulombbarrier energies ID: 763275
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Fusion of Halo Nuclei Andrew LaJoieMay 8, 2015PHY 802 The Title
The Quandary Effect of Halo Structure on Fusion cross sectionEnhancementSuppressionDifferent DomainsSub-Coulomb-barrier energies Over-barrier energiesConsiderationsSpatially Extended DensityBreakupIncomplete FusionSub-barrier Fusion of Two-neutron Halo NucleiP.R.S. Gomes, et. al.
The Analysis So-called Universal Fusion Function (UFF)Optical model calculation – Potential described by Wong’s formulaCoupled Channel Calculation Previously, reaction mechanism of halo nuclei at energies below Coulomb Barrier wasn’t completely understood or easily modeled Author claims UFF rectifies thisProcess accounts for breakup channel (animation)
The Takeaway Author’s ClaimFocus on Sub-barrier energiesEnhancement of FusionAbove-barrier energies result seems inconsistent with previous authors’ Another ClaimFocus on Above-barrier energiesSuppression of Fusion Suppressed Fusion Cross Section for Neutron Halo Nuclei M. Ito, et. al. Conclusion: A better understanding can provide insights into Nuclear Fusion Halo Nuclei Properties Results seem inconsistent
The References P.R.S. Gomes, L.F. Canto, J. Lubian, M.S. Hussein Sub-barrier Fusion of Two-neutron Halo Nuclei Phys. Lett. B, 695 (2011), p. 320L.F. Canto, P.R.S. Gomes, J. Lubian, L.C. Chamon, E. Crema Nucl. Phys. A, 821 (2009), p. 51C.Y. Wong Phys. Rev. Lett., 31 (1973), p. 766R. Raabe, et al. Nature, 431 (2004), p. 823M. Ito, K. Yabana, T. Nakatsukasa, M. Ueda Phys. Lett. B, 637 (2006), P. 53