Coulomb-Nuclear Coupling and Interference Effects in the Breakup of Halo Nuclei

Abstract

Nuclear and Coulomb breakup of halo nuclei have been treated often as incoherent processes and structure information have been extracted from their study. The aim of this paper is to clarify whether interference effects and Coulomb-nuclear couplings are important and how they could modify the simple picture previously used. We calculate the neutron angular and energy distributions by using first order perturbation theory for the Coulomb amplitude and an eikonal approach for the nuclear breakup. This allows for a simple physical interpretation of the results which are mostly analytical. Our formalism includes the effect of the nuclear distortion of the neutron wave function on the Coulomb amplitude. This leads to a Coulomb-nuclear coupling term derived here for the first time which gives a small contribution for light targets but is of the same order of magnitude as nuclear breakup for heavy targets. The overall interference is constructive for light to medium targets and destructive for heavy targets. Thus it appears that Coulomb breakup experiments need to be analyzed with more accurate models than those used so far.

28 Latex pages, 2 tables, 2 eps figures, 5 ps figures. Accepted for publication in Nucl. Phys. A

References in corpus (9)

• Three-body correlations in Borromean halo nuclei
• Projectile structure effects in the Coulomb breakup of one-neutron halo nuclei
• Higher order effects in electromagnetic dissociation of neutron halo nuclei
• Initial State Dependence of the Breakup of Weakly Bound Carbon Isotopes
• Dynamical description of the breakup of one-neutron halo nuclei 11Be and 19C
• Comparison of Transfer-to-Continuum and Eikonal Models of Projectile Fragmentation Reactions
• Structure of ^{19}C from Coulomb dissociation studies
• Core excitation in Coulomb breakup reactions
• Coulomb and nuclear breakup effects in the single neutron removal reaction 197Au(17C,16C gamma)X

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