论文标题
TDHF方法中ND同位素的巨型偶极子共振和形状演变
Giant dipole resonance and shape evolution in Nd isotopes within TDHF method
论文作者
论文摘要
在与Skyrme Ski3，SVBAS，SVBAS，SLY5和SLY6和SLY6的框架内研究了从A = 124到A = 160的均匀同位素偶发共振（IVGDR）的同位素偶极子共振（IVGDR）。计算偶极强度并将其与光子吸收横截面$σ_γ$的实验数据进行比较。获得了它们之间的总体协议。 $ ^{124-140} \ text {nd} $和$ ^{152-160} \ text {nd} $中的偶极优势。此外，研究了巨型偶极子共振（GDR）光谱的四极变形参数$β_{2} $与分裂$Δe/ \ bar {e} _ {m} $之间的相关性。结果证实$Δe/ \ bar {e} _ {m} $与$β_{2} $成比例。还根据IVGDR研究了ND同位素中的形状相变。
The isovector giant dipole resonance (IVGDR) in even-even Nd isotopes from A=124 to A=160 is studied in the framework of time-dependent Hartree-Fock (TDHF) with Skyrme forces SkI3, SVbas, SLy5 and SLy6. The dipole strength is calculated and compared with the experimental data on photon absorption cross section $σ_γ$. An overall agreement between them is obtained. The dipole strengths in $ ^{124-140}\text{Nd}$ and $^{152-160}\text{Nd} $ are predicted. In addition, the correlation between the quadrupole deformation parameter $β_{2}$ and the splitting $ΔE/ \bar{E}_{m}$ of the giant dipole resonance (GDR) spectra is studied. The results confirm that $ΔE/ \bar{E}_{m}$ is proportional to $β_{2}$. Shape phase transition in Nd isotopes is also investigated in the light of IVGDR.
