Four-body DWBA calculations of the Coulomb breakup of 6He

Abstract

We investigate the Coulomb breakup of the two-neutron halo nucleus 6He by extending the framework of the finite range post form distorted wave Born approximation theory introduced earlier for the description of the breakup of one-neutron halo nuclei. The model can use the realistic three-body wave function for the 6He ground state. Calculations have been performed for energy, total and parallel momentum distributions of 4He fragment. The two-body 4He-neutron and neutron-neutron correlations have also been calculated. Our results are compared with those of an adiabatic model of the Coulomb breakup reactions. The two theories lead to almost identical results. Comparisons are also made with the available experimental data. It is found that the pure Coulomb breakup can describe the bulk of the data taken at below grazing angles. However, a rigorous description of all the available data requires the consideration of the nuclear breakup effects.

arXiv comment24 pages Latex, 10 figures, some typos corrected, version to appear in Nucl. Phys. A

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Cited by in corpus (10)

• Four-body continuum-discretized coupled-channels calculations using a transformed harmonic oscillator basis
• alpha-particle production in the scattering of 6He by 208Pb at energies around the Coulomb barrier
• Reaction models to probe the structure of light exotic nuclei
• The Onset of Nuclear Structure Effects in Near-Barrier Elastic Scattering of Weakly-Bound Nuclei: ${}^6$He and ${}^6$Li Compared
• Study of Postacceleration Effects in the Coulomb Dissociation of Neutron Halo Nuclei
• Coulomb-nuclear interference in the breakup of ${}^{11}$Be
• A full quantal theory of one-neutron halo breakup reactions
• Generalized optical potential for weakly bound nuclei. I. Two-cluster projectiles
• Interplay of static and dynamic effects in 6He+ 238U Fusion
• Beam energy dependence of Coulomb-nuclear interference in the breakup of 11Be