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arXiv 1409.0877nucl-th
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晕核~ 6 He和~ 8He的库仑-Sturmian基

Halo nuclei 6He and 8He with the Coulomb-Sturmian basis

M. A. Caprio, P. Maris, J. P. Vary

摘要:

在大半径的振子函数的快速高斯衰减,使他们不适合的描述的渐近性质的核波函数,一个问题,成为特别尖锐的晕核。我们考虑从头算无核心配置相互作用(NCCI)计算的替代基础,建立从库仑-Sturmian径向函数,允许现实的指数衰减。本文采用JISP 16核子-核子相互作用模型,对中子晕核6,8He和4 He进行了NCCI计算。估计的质子和物质分布的均方根半径。

英文摘要:

The rapid Gaussian falloff of the oscillator functions at large radius makes them poorly suited for the description of the asymptotic properties of the nuclear wave function, a problem which becomes particularly acute for halo nuclei. We consider an alternative basis for ab initio no-core configuration interaction (NCCI) calculations, built from Coulomb-Sturmian radial functions, allowing for realistic exponential falloff. NCCI calculations are carried out for the neutron halo nuclei 6,8He, as well as the baseline case 4He, with the JISP16 nucleon-nucleon interaction. Estimates are made for the root-mean-square radii of the proton and matter distributions.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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