We explore the evolution of the structure of the ground state of a nucleus with two valence nucleons as the system approaches the two particle threshold. We use a three-body model of core + n + n where the core is deformed and allowed to excite. We find that both NN correlations and correlations due to deformation/excitation of the core inhibit the formation of halos. Our results suggest that it is unlikely to find halo nuclei on the dripline of deformed nuclei. (c) 2005 Elsevier B.V. All rights reserved.
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机译：当系统接近两个粒子阈值时，我们探索具有两个价核子的原子核基态结构的演化。我们使用核+ n + n的三体模型，其中核变形并被激发。我们发现，神经网络相关性和由于核的变形/激发引起的相关性都抑制了光晕的形成。我们的结果表明，不太可能在变形核的滴水线上发现晕核。 （c）2005 Elsevier B.V.保留所有权利。
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