$^{34}$ Si中PDKEEPAAA的还原：弱结合还是密度耗尽效应？
Reduction of SO in $^{34}$Si: weak binding or density-depletion effect ?
摘要：
$^{41}$ Ca和$^{35}$ Si同位素之间的中子自旋轨道分裂$2p_{3/2} - 2p_{1/2}$的减少是整个核素图表中的独特特征，因为自旋轨道分裂通常随着$A$而增加。此外，它的减少方式，逐渐之间的$^{41}$ Ca和$^{35}$ Si或突然之间的$^{37}$ S和$^{35}$ Si，以及它的起源，由弱结合能的$p$状态或由突然的中心质子密度耗尽在$^{35}$ Si，是有争议的主题。这里报道的结果使用自洽协变能量密度泛函计算与DD-ME 2参数化，而不是指向一个突然的，局部减少$^{35}$ Si，和大的主导地位的中心密度耗尽效应。我们的结论是，弱结合，中心密度耗尽以及相关性必须考虑到充分评估这种自旋轨道减少的幅度和原因。
英文摘要：
The reduction of the neutron spin-orbit splitting $2p_{3/2} - 2p_{1/2}$ between the $^{41}$Ca and $^{35}$Si isotones is a unique feature throughout the chart of nuclides, as the spin-orbit splitting usually increases with $A$. Moreover, its way of decrease, gradual between $^{41}$Ca and $^{35}$Si or abrupt between $^{37}$S and $^{35}$Si, as well as its origin, caused by the weak binding energy of the $p$ states or by the sudden central proton density depletion in $^{35}$Si, are subject of debate. The results reported here using the self-consistent Covariant Energy Density Functional calculations with the DD-ME2 parametrization rather point to an abrupt, local decrease in $^{35}$Si, and to the large dominance of the central density depletion effect. It is concluded that weak binding, central density depletion as well as correlations must be taken into account to fully evaluate the amplitude and causes of this spin-orbit reduction.
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