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arXiv 1806.01112nucl-th
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$^{17}$ C的卤代结构

Halo structure of $^{17}$C

Jonas Braun, Hans-Werner Hammer, Lucas Platter

摘要:

$^{17}$ C有三个低于$^{16}$ C + $n$阈值的状态,量子数为$J^P=3/2^+,1/2^+,5/2^+$。与$^{16}$ C的中子分离和激发能相比,这些状态具有相对小的中子分离能。这种尺度的分离激发了我们对$^{17}$ C在Halo有效场论(Halo EFT)中的研究,Halo EFT以$^{16}$ C核和价中子为自由度。我们讨论了这三个态的各种性质,如电半径,磁矩,电磁跃迁率和俘获截面。特别是,我们给出的电荷半径和磁矩的$1/2^+$状态和中子捕获$^{16}$ C到这个状态的预测。此外,我们讨论的预测能力的Halo EFT方法的$3/2^+$和$5/2^+$状态,这是由中子在一个$D$波相对于核心。

英文摘要:

$^{17}$C has three states below the $^{16}$C + $n$ threshold with quantum numbers $J^P=3/2^+,1/2^+,5/2^+$. These states have relatively small neutron separation energies compared to the neutron separation and excitation energies of $^{16}$C. This separation of scales motivates our investigation of $^{17}$C in a Halo effective field theory (Halo EFT) with a $^{16}$C core and a valence neutron as degrees of freedom. We discuss various properties of the three states such as electric radii, magnetic moments, electromagnetic transition rates and capture cross sections. In particular, we give predictions for the charge radius and the magnetic moment of the $1/2^+$ state and for neutron capture on $^{16}$C into this state. Furthermore, we discuss the predictive power of the Halo EFT approach for the $3/2^+$ and $5/2^+$ states which are described by a neutron in a $D$-wave relative to the core.

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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