E1辐射强度计算模型的验证
Verification of Models for Calculation of E1 Radiative Strength
摘要：
计算了光吸收截面和γ衰变强度函数，并与实验数据进行了比较，以检验现有的中重原子核偶极辐射强度函数（RSF）模型。提出了修正的洛伦兹模型的简化形式。给出了新的巨偶极共振（GDR）参数表。结果表明，当GDR参数已知或采用GDR系统学时，具有非对称形状的唯象封闭模型可用于20 MeV以下γ射线能区偶极RSF的总体估计。另外，HFB-QRPA微观模型和移动表面的半经典方法似乎是更合适的方法来估计偶极光吸收RSF。
英文摘要：
Photoabsorption cross sections and gamma-decay strength function are calculated and compared with experimental data to test the existing models of dipole radiative strength functions (RSF) for the middle-weight and heavy atomic nuclei. Simplified version of the modified Lorentzian model are proposed. New tables of giant dipole resonance (GDR) parameters are given. It is shown that the phenomenological closed-form models with asymmetric shape can be used for overall estimates of the dipole RSF in the gamma -ray energy region up to about 20 MeV when GDR parameters are known or the GDR systematics can be adopted. Otherwise, the HFB-QRPA microscopic model and the semi-classical approach with moving surface appear to be more adequate methods to estimate the dipole photoabsorption RSF.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
