Coulomb corrected eikonal description of the breakup of halo nuclei

Abstract

The eikonal description of breakup reactions diverges because of the Coulomb interaction between the projectile and the target. This divergence is due to the adiabatic, or sudden, approximation usually made, which is incompatible with the infinite range of the Coulomb interaction. A correction for this divergence is analysed by comparison with the Dynamical Eikonal Approximation, which is derived without the adiabatic approximation. The correction consists in replacing the first-order term of the eikonal Coulomb phase by the first-order of the perturbation theory. This allows taking into account both nuclear and Coulomb interactions on the same footing within the computationally efficient eikonal model. Excellent results are found for the dissociation of 11Be on lead at 69 MeV/nucleon. This Coulomb Corrected Eikonal approximation provides a competitive alternative to more elaborate reaction models for investigating breakup of three-body projectiles at intermediate and high energies.

arXiv comment19 pages, 9 figures, accepted for publication in Phys. Rev. C

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• Eikonal Reaction Theory for Neutron-Removal Reaction
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• Halo effective field theory analysis of one-neutron knockout reactions of ${}^{11}\mathrm{Be}$ and ${}^{15}\mathrm{C}$
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• Combining Halo-EFT descriptions of nuclei and precise models of nuclear reactions
• Total reaction cross section on a deuteron target and the eclipse effect of the constituent neutron and proton
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• Open issues in extracting nuclear structure information from the breakup of exotic nuclei
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• Detailed Study of the Eikonal Reaction Theory for the breakup of one-neutron halo nuclei
• Sensitivity of one-neutron knockout of halo nuclei to their nuclear structure