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Significant features of 8B scattering from 208Pb at 170.3 MeV

Mackintosh, R. S. and Pang, D. Y. (2013). Significant features of 8B scattering from 208Pb at 170.3 MeV. Physical Review C, 88, article no. 014608.

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The scattering of proton-halo nucleus 8B from 208Pb at 170.3 MeV is shown to reveal a distinctive pattern in the change in |SL| that is induced by coupling to breakup channels. The same pattern had been found for 8B scattering from 58Ni at 30 MeV, an energy near the Coulomb barrier, and has been linked to various other respects in which scattering for this proton-halo nucleus differs from that of other light, weakly bound nuclei. The increase in |SL | forL < 80, induced by breakup coupling, is associated with a substantial repulsive region in the dynamic polarization potential as determined by exact inversion. This repulsion appears to reduce the penetration of the projectile into the absorptive region of the interaction. This accounts for the fact that the increase in the total reaction cross section, due to breakup, is much less than the breakup cross section, and is consistent with the relatively small effect of breakup on the elastic scattering angular distribution compared with the large breakup cross section.

Item Type: Journal Item
Copyright Holders: 2013 American Physical Society
ISSN: 0556-2813
Keywords: 8B+208Pb elastic scattering at 170.3 MeV; CDCC breakup calculations; DPP determined; S-matrix inversion; anomaly discussed.
Academic Unit/School: Faculty of Science, Technology, Engineering and Mathematics (STEM) > Physical Sciences
Faculty of Science, Technology, Engineering and Mathematics (STEM)
Item ID: 38038
Depositing User: Raymond Mackintosh
Date Deposited: 23 Jul 2013 15:24
Last Modified: 11 Jun 2020 18:46
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