用1／N展开技术研究汞核的能谱和B(E2)

用１／Ｎ展开法加上自洽Ｑ框架的ｓｄＩＢＭ１研究比Ｈｆ更重一些的中等质量核的Ｈｇ的同位素的能谱，计算了＾１８６Ｈｇ基带的几个Ｂ（Ｅ２）值，有一定程度的符合，高激发态符合得较好，特别是能正确反映出Ｂ（Ｅ２）值随能级谱化的趋势，而且只用了很少的可调参数去拟合大量数据，注意到值随能级变化的趋势，而且只用了很少的可调参数去拟合大量数据。注意到Ｈｇ核的质子数Ｚ＝８０，很接满壳层，可见１／Ｎ展开展理论适用于很大

A Study of Spectra and B(E2) of Mercury Nuclei By 1/N Expansion Technology

The 1/ N expansion theory in the consistent Q framework in the sdIBM1 has been successfully applied to the study of energy spectra of heavy nuclei and medium mass Hf isotopes.This paper applies the theory to the study of the energy spectra of the 3 mercury isotopes and the B (E2) of ground band low lying states of 186 Hg.The theoretical results fit with experimental data in a certain degree.Especially,it can correctly reflect the variation trend of B (E2) with energy levels.The theory can fit reasonably with a great deal of experimental data with only a few adjustable parameters.Noticing that the proton number of Hg nucleus Z =80 is near full shell,it can be seen that the 1/ N expansion theory is suitable for a wide range of nuclear spectra.