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arXiv 0709.4304nucl-ex
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以~(163)Dy复合核两步γ级联分析为例论核参数提取中各种方法的正确性

On the correctness of various approaches in the extraction of the nucleus parameters on example of analysis of the two-step gamma-cascades in 163Dy compound nucleus

V. A. Khitrov, A. M. Sukhovoj, Pham Dinh Khang, Vuong Huu Tan, Nguyen Xuan Hai

摘要:

对~(163)Dy的两步级联强度实验数据的无模型分析表明,其复合态级联γ衰变的基本特征与其它核中观察到的特征完全一致。因此,在这个核中的水平的密度具有良好的精度,它被再现为三个,五个,七个准粒子激发的总和与十倍,作为最小值,由于振动型激发的增加。偶极初级伽马跃迁辐射强度函数之和的最大变化与可激发准粒子数量的变化相关。因此,模型介绍的辐射强度函数较大,比现有的,准确性必须考虑作为一个数量的激发准粒子,所以存在的振动型激发的所有可能的类型。此外,所研究的过程的可靠的图片,可以得到只有从近似的级联的强度分布在其初级伽玛跃迁的能量的函数。

英文摘要:

The model-free analysis of experimental data in the intensities of two-step cascades into 163Dy shows, that the basically special features of the cascade gamma-decay of its compound-state completely correspond to those observed in other nuclei. Thus, the density of the levels in this nucleus with good precision it is reproduced as sum of three, five, seven-quasiparticle excitations with the tenfold, as the minimum, by an increase due to vibration type excitations. The greatest changes in the sum of the radiation strength functions of dipole primary gamma-transitions correlate with a change in the number of excitable quasi-particles. Accordingly, model presentations about the radiation strength functions of larger, than for those existing, accuracy must consider as a quantity of excited quasi-particles, so the presence of the vibration type excitations of all possible types. Moreover, the reliable picture of the studied process can be obtained only from the approximation of the distributions of the intensities of cascades in the function of energies of their primary gamma-transitions.

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。

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