Hg和Pb超变形带的精确计算

Accurate Calculation of Superdeformed Bands in Hg and Pb

利用从Bohr哈密顿量导出的转动谱abc公式E(I)=a[1+cL(I+1)][{1+bl(I+1)}^(1/2)-1],分析了已观测到的Hg和Pb同位素的超变形核转动带,计算结果与观测结果惊人地符合,几乎全部计算值与观测值的偏差|δ|≤0.5keV.对于这些超变形带中目前尚未测出的一些跃迁能量也进行了计算,可作为探测它们的有价值的参考。

The superdeformed (SD) rotational bands in Fig and Pb are analyzed by means of the abc expression for rotational bands: E (I) =α [1+cI(I+1)][(1+bi(I+1)^(1/2)], which was derived from the Bohr Hamiltonian. The agreement between calculated and observed transition energies is incredibly well. The deviation of the calculated E_r's from the observed results turns out to be |δ|≤0.5keV (except for a few cases, 0.5keV≤|δ|≤0.7ke.V). Some transitions which have not been observed yet in these SD bands are also predicted, which may be useful for experimental investigation.