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arXiv · 2603.10339

Insensitivity of the Coulomb breakup of halo nuclei to spectroscopic factors

Live-Palm Kubushishi·Pierre Capel
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Abstract

Exotic nuclear structures such as halos are mostly studied using reactions. In Coulomb breakup, the radioactive projectile dissociates through its interaction with a heavy target. Often, a spectroscopic factor for the core-halo structure is inferred from experimental data. In this work, we present a new calculation of the Coulomb breakup of the one-neutron halo nucleus $^{11}$Be performed with a coupled-channel effective particle-rotor model of that nucleus, which accounts for the excitation of the $^{10}$Be core. Changes in the spectroscopic factor have no effect on the cross sections when the asymptotic normalisation coefficient is fixed, hence confirming the insensitivity of Coulomb-breakup cross sections to spectroscopic factors.

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Live-Palm Kubushishi, Pierre Capel. 2026-03-11. Insensitivity of the Coulomb breakup of halo nuclei to spectroscopic factors. https://arxiv.org/abs/2603.10339

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