Fine Structure of Giant Resonance in the 28Si(γ, abs) Reaction
Fine Structure of Giant Resonance in the 28Si(γ, abs) Reaction
复制标题
28Si(γ,abs)反应中巨共振的精细结构
DOI：
10.1080/18811248.2001.9715055
复制
发表时间：
2001
期刊：
影响因子：
--
通讯作者：
H. Toyokawa
中科院分区：
文献类型：
--
作者：
H. Harada;K. Furutaka;H. Ohgaki;H. Toyokawa
用高分辨率高能光子谱仪和激光康普顿光子测量了28Si在17.5-21.5 MeV能量范围内的光吸收截面。在28Si的巨偶极子共振中，有4个中间结构峰被分解成约30个精细结构峰。与(γ，p0)和(γ，n0)反应的结构比较表明，(γ，abs)反应的精细结构峰能量与(γ，p0)和(γ，n0)反应的精细结构峰能量具有相关性。
The photo-absorption cross section for 28Si has been measured in the energy range 17.5–21.5 MeV, using a high- resolution high-energy photon spectrometer and laser Compton photons. Four intermediate structure peaks in the giant dipole resonance of 28Si have been resolved into about thirty fine-structure peaks. The comparison of the observed structure with those in (γ, p 0) and (γ, n 0) reactions shows that the energies of the fine structure peaks in (γ, abs) reaction have a correlation with those in both of the (γ, p 0) and (γ, n 0) reactions.