铂核:隐蔽组态混合和形状共存
The platinum nuclei: concealed configuration mixing and shape coexistence
摘要:
在Pt区域的配置混合的作用进行了研究。对于这个同位素链,基态的性质变化很平滑,在质量$A\sim 174$和$A\sim 192$周围是球形的,在中壳层N=104区域周围是变形的。这有一个显着的影响系统的能量谱相比,系统的铅和汞核。本文用相互作用玻色子模型计算了旋磁因子、$α$ -衰变阻碍因子和同位素位移。将入侵者配置,以获得后者的属性的准确描述的必要性变得显而易见。
英文摘要:
The role of configuration mixing in the Pt region is investigated. For this chain of isotopes, the nature of the ground state changes smoothly, being spherical around mass $A\sim 174$ and $A\sim 192$ and deformed around the mid-shell N=104 region. This has a dramatic effect on the systematics of the energy spectra as compared to the systematics in the Pb and Hg nuclei. Interacting Boson Model with configuration mixing calculations are presented for gyromagnetic factors, $α$-decay hindrance factors, and isotope shifts. The necessity of incorporating intruder configurations to obtain an accurate description of the latter properties becomes evident.
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