论文标题
$^{16} $ c中的正态线性链分子频带
Positive-parity linear-chain molecular band in $^{16}$C
论文作者
论文摘要
一个无弹性激发和集群 - 交易实验$ \ rm {^2H}（^{16} c，〜{^{4} he}+{^{^{^{12} be}〜或〜}〜或〜{^{6} he} he} he}+{^{^{10} be {^{10} be and-n Mutiment in Metertim carrist in linment carrustriment in linment carrustriment in linment in linment in linsim $ \ rm {^{16} c} $。得益于从三倍的重合测量中获得的良好的$ q $ - 值光谱，确定了$ \ rm {^{16} c} $共振的decay路径。 The close-threshold resonance at 16.5 MeV is assigned as the ${J^π}={0^+}$ band head of the predicted positive-parity linear-chain molecular band with ${(3/2_π^-)^2}{(1/2_σ^-)^2}$ configuration, according to the associated angular correlation and decay analysis.该乐队的其他成员在17.3、19.4和21.6 MEV基于他们的选择性衰减特性，与理论预测一致。在27.2 MEV上观察到了另一个有趣的高空状态，几乎完全衰减到$ \ rm {^{6} he}+{^{10} be {（\ sim6〜mev）} $最终通道，与另一种预测的linear-crin-cr-cinthround cyment of pure $ $σ$ -Bond bongration。
An inelastic excitation and cluster-decay experiment $\rm {^2H}(^{16}C,~{^{4}He}+{^{12}Be}~or~{^{6}He}+{^{10}Be}){^2H}$ was carried out to investigate the linear-chain clustering structure in neutron-rich $\rm {^{16}C}$. For the first time, decay-paths from the $\rm {^{16}C}$ resonances to various states of the final nuclei were determined, thanks to the well-resolved $Q$-value spectra obtained from the three-fold coincident measurement. The close-threshold resonance at 16.5 MeV is assigned as the ${J^π}={0^+}$ band head of the predicted positive-parity linear-chain molecular band with ${(3/2_π^-)^2}{(1/2_σ^-)^2}$ configuration, according to the associated angular correlation and decay analysis. Other members of this band were found at 17.3, 19.4, and 21.6 MeV based on their selective decay properties, being consistent with the theoretical predictions. Another intriguing high-lying state was observed at 27.2 MeV which decays almost exclusively to $\rm {^{6}He}+{^{10}Be{(\sim6~ MeV)}}$ final channel, corresponding well to another predicted linear-chain structure with the pure $σ$-bond configuration.
