论文标题

$^{31} $ ne在球形形式主义中

Halo EFT for $^{31}$Ne in a spherical formalism

论文作者

Elkamhawy, Wael, Hammer, Hans-Werner

论文摘要

我们使用Halo有效的现场理论(Halo eft)计算了变形的单中性光环候选者$^{31} $ NE的电磁特性(Halo EFT)。在此框架中,$^{31} $ ne通过$^{30} $ ne core和Valence Neutron之间的谐振$ p $ - 波 - 波的互动。我们为$^{31} $ ne建立了一个球形形式主义,以计算电磁形式和E1折叠强度分布到$^{30} $ ne-ne-Ne-Neutron Continuum在Halo EFT中的领先顺序。相关的不确定性是根据我们的权力计数估算的。特别是,我们假设$^{30} $ ne Core的变形以近代的顺序进入。可以通过包括$ j^p = 2^+$兴奋的状态$^{30} $ ne作为有效拉格朗日的显式字段来解释。

We calculate the electromagnetic properties of the deformed one-neutron halo candidate $^{31}$Ne using Halo Effective Field Theory (Halo EFT). In this framework, $^{31}$Ne is bound via a resonant $P$-wave interaction between the $^{30}$Ne core and the valence neutron. We set up a spherical formalism for $^{31}$Ne in order to calculate the electromagnetic form factors and the E1-breakup strength distribution into the $^{30}$Ne-neutron continuum at leading order in Halo EFT. The associated uncertainties are estimated according to our power counting. In particular, we assume that the deformation of the $^{30}$Ne core enters at next-to-leading order. It can be accounted for by including the $J^P=2^+$ excited state of $^{30}$Ne as an explicit field in the effective Lagrangian.

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