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arXiv 2104.01200nucl-th
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$^{29}$ Ne的结构探讨

Exploring the structure of $^{29}$Ne

Manju, M. Dan, G. Singh, Jagjit Singh, Shubhchintak, R. Chatterjee

摘要:

在后形式有限程扭曲波玻恩近似下,应用全量子力学库仑破裂理论,分析了在$244$,MeV/u能量下,$^{29}$ Ne在$^{208}$ Pb上的弹性库仑破裂.我们计算了几个反应观测量来量化它的结构参数。计算了$^{29}$ Ne的单中子去除截面,验证了基态组态与实验数据的一致性。的带电碎片的平行动量分布的审查揭示了$82$ \,MeV/c,这是在很好的协议与实验值的半高宽,并表明一个中等的晕的近球形$^{29}$ Ne的$^{28}$ Ne $(0^+) \otimes 2p_{3/2}ν$基态。带电碎片的能量角分布和平均动量表明在破碎过程中不存在后加速效应,这是弹性破碎的理想结果。

英文摘要:

We apply a fully quantum mechanical Coulomb breakup theory under the aegis of post form finite-range distorted wave Born approximation to analyze the elastic Coulomb breakup of $^{29}$Ne on $^{208}$Pb at $244$\,MeV/u. We calculate several reaction observables to quantify its structural parameters. One-neutron removal cross-section is calculated to check the consistency of the ground state configuration of $^{29}$Ne with the available experimental data. A scrutiny of the parallel momentum distribution of the charged fragment reveals a full width at half maximum of $82$\,MeV/c, which is in good agreement with the experimental value and indicates a moderate halo for a nearly spherical $^{29}$Ne in the $^{28}$Ne$(0^+) \otimes 2p_{3/2}ν$ ground state. The energy-angular distributions and average momentum of the charged fragment point to the absence of post-acceleration effects in the breakup process, a desirable result for the elastic breakup.

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