14 C长寿命之谜的新解答
New solution to the puzzle of the long lifetime of 14C
摘要：
提出了一种新的团簇模型，解决了长期以来存在的描述14 C超长寿命的原子核结构问题。相关的β衰变数据为14 O到14 N的状态，γ衰变数据之间的低躺在14 N的正宇称态和弹性和非弹性磁偶极子电子散射从14 N的数据都被证明是非常准确地描述的模型。该模型也很好地再现了A=14系统的β谱的形状。该模型调用了由三核子和四核子相互作用产生的四核子四面体对称空间关联，这产生了团簇的高度SU（4）单线态结构和双魔16 O基态的四面体固有形状。大的四极矩的14 N基态在这里获得的第一次和出现，因为几乎100%的d-波氘类空穴团簇结构中固有的模型。
英文摘要：
A new cluster model solution to the long standing nuclear structure problem of describing the anomalously long lifetime of 14C is presented. Related beta-decay data for 14O to states in 14N, gamma decay data between low lying positive parity states in 14N and the elastic and inelastic magnetic dipole electron scattering from 14N data are all shown to be very accurately described by the model. The shapes of the beta spectra for the A=14 system are also well reproduced by the model. The model invokes four-nucleon tetrahedral symmetric spatial correlations arising from three- and four-nucleon interactions which yields a high degree of SU(4) singlet structure for the clusters and a tetrahedral intrinsic shape for the doubly magic 16O ground state. The large quadrupole moment of the 14N ground state is obtained here for the first time and arises because of the almost 100% d-wave deuteron-like-hole cluster structure inherent in the model.
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