Inelastic scattering of 172.5 MeV α particles by 12C
Inelastic scattering of 172.5 MeV α particles by 12C
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12C 下 172.5 MeV α 粒子的非弹性散射
DOI：
10.1088/0305-4616/13/8/014
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发表时间：
1987
期刊：
影响因子：
--
通讯作者：
S. Wiktor
中科院分区：
文献类型：
--
作者：
Á. Kiss;C. Mayer;M. Rogge;P. Turek;S. Wiktor
对于动能高于 90 MeV 的粒子，测量了入射能量为 172.5 MeV 时来自 α +12C 反应的非弹性散射 α 粒子的角分布（实验室）。在光谱中发现了离散峰和特征结构，直至对应于 12C 核中约 30 MeV 激发的区域。通过将观察到的转变与 DWBA 计算进行比较，提取多极性和变形长度。推导了 GQR 区域中总结构和其他 L=2 跃迁的 L=2 EWSR 限制的分数。
Angular distributions of inelastically scattered alpha particles from the alpha +12C reaction at an incident energy of 172.5 MeV were measured for particles with kinetic energies higher than 90 MeV (lab.). Discrete peaks and characteristic structures have been found in the spectra up to regions that correspond to about 30 MeV excitation in the 12C nucleus. Multipolarities and deformation lengths are extracted for the observed transitions by comparing them with DWBA calculations. The fractions of the L=2 EWSR limit for the gross structures in the GQR region and for the other L=2 transitions are deduced.