Where is the non-spin-flip isovector monopole resonance in 208Tl?
Where is the non-spin-flip isovector monopole resonance in 208Tl?
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208Tl 中的非自旋翻转等矢量单极共振在哪里？
DOI：
10.1103/physrevc.53.2201
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发表时间：
1996
期刊：
影响因子：
--
通讯作者：
van Giai N
中科院分区：
文献类型：
--
作者：
Colo.;van Giai N
对{sup 208}铅的等向向量单极子共振的{Delta}{italT}{sub{italz}}=+1分量的实验研究揭示了它是一个实验谜题。在这项工作中，我们在一个随机相近态与连续组态和一组门口态{OPEN_QUOTE}{CLOSE_QUOTE}耦合的模型框架内，对这种共振的强度分布及其中子衰变特性进行了理论计算，以描述核振动的基本逃逸和衰减机制。我们的结果与现有的测量结果和其他理论分析进行了比较。{版权所有}{1996年美国物理学会。}
The experimental study of the {Delta}{ital T}{sub {ital z}}=+1 component of the isovector monopole resonance of {sup 208}Pb has revealed itself as an experimental puzzle. We present in this work a theoretical calculation of the strength distribution of this resonance and of its neutron decay properties, within the framework of a model in which random phase approximation states are coupled with continuum configurations and with a set of {open_quote}{open_quote}doorway states{close_quote}{close_quote} in order to describe the basic escape and damping mechanisms of the nuclear vibration. Our results are compared with existing measurements and with other theoretical analyses. {copyright} {ital 1996 The American Physical Society.}