Abstract
Models for the description of breakup reactions used to study the structure of exotic cluster structures like halos are reviewed. The sensitivity of these models to the projectile description is presented. Calculations are sensitive to the projectile ground state mostly through its asymptotic normalisation coefficient (ANC). They also probe the continuum of the projectile. This enables studying not only resonant states of the projectile but also its non-resonant continuum both resonant and non-resonant. This opens the possibility to study correlations between both halo neutrons in two-neutron halo nuclei.
Highlights
The developments of radioactive-ion beams in the mid-80s, has permitted the exploration of the nuclear chart far from stability
Halo nuclei are of particular interest here as they exhibit a strongly clusterised structure that explains there very large radius compared to their isobars
Due to the heavy computational requirement of Continuum Discretised Coupled Channel model (CDCC), this extension was at first limited to the description of the elastic scattering of two-neutron halo nuclei, in which a breakup channel was included in a crude way
Summary
The developments of radioactive-ion beams in the mid-80s, has permitted the exploration of the nuclear chart far from stability. Halo nuclei are of particular interest here as they exhibit a strongly clusterised structure that explains there very large radius compared to their isobars. These neutron-rich nuclei have a small binding energy for one or two neutrons. Breakup reaction is probably among the best tools to study exotic clusterised structures such as halo nuclei. During this reaction, the nucleus of interest is broken up into its constituents—the halo nucleon(s) and the core in this case—through its interaction with a target [2]. Published under licence by IOP Publishing Ltd doi:10.1088/1742-6596/569/1/012035
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