【摘 要】
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Within our aim to clarify some aspects of the breakup dynamics of loosely-bound neutron-halo pro-jectiles on a heavy target,we apply the continuum discretized coupled-channel formalism to investigate the berylli-um 11Be breakup on a lead 208Pb target at E
【机 构】
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Department of Physics,University of South Africa,P.O.Box 392,Pretoria 0003,South Africa;Instituto de
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Within our aim to clarify some aspects of the breakup dynamics of loosely-bound neutron-halo pro-jectiles on a heavy target,we apply the continuum discretized coupled-channel formalism to investigate the berylli-um 11Be breakup on a lead 208Pb target at Elab=140 MeV incident energy.By evidencing that the continuum-con-tinuum couplings are much stronger in the nuclear breakup than in the Coulomb breakup,we conclude that the strength of these couplings in the total breakup is dominated by the nuclear contribution,with the diagonal mono-pole nuclear potential in the projectile-target center-of-mass having negligible effect on the total and nuclear break-up cross-sections.For this kind of reaction,we show that the condition for the total breakup to approach its domin-ant component in the absorption region is strongly dependent on the continuum-continuum couplings and the diag-onal monopole nuclear potential.
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