Properties of α-decay to ground and excited states of heavy nuclei

被引：0
|
作者：
Wang, Y. Z. [1 ]
Gu, J. Z. [1 ,4 ]
Dong, J. M. [2 ,3 ]
Peng, B. B. [1 ]
机构：
[1] China Inst Atom Energy, Beijing 102413, Peoples R China
[2] Lanzhou Univ, Sch Nucl Sci & Technol, Lanzhou 730000, Peoples R China
[3] Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China
[4] Ctr Theoret Nucl Phys, Natl Lab Heavy Ion Accelerator Lanzhou, Lanzhou 730000, Peoples R China
来源：
EUROPEAN PHYSICAL JOURNAL A | 2010年 / 44卷 / 02期
基金：
中国国家自然科学基金;
关键词：
SUPERHEAVY NUCLEI; EMISSION;
D O I：
10.1140/epja/i2010-10948-4
中图分类号：
O57 [原子核物理学、高能物理学];
学科分类号：
070202 ;
摘要：
Branching ratios and half-lives of alpha-decay to the ground-state rotational bands as well as the high-lying excited states of even-even nuclei have been calculated in the framework of the generalized liquid drop model (GLDM) and Royer's formula that we improved very recently. The calculation covers the isotopic chains from Ra to No in the mass regions 222 <= A <= 252 and 88 <= Z <= 102. The agreement between the calculated results and the experimental data indicates the reliability of investigating the properties of the unfavored alpha-decay with our method, especially the improved Royer's formula, which is very valuable for the analysis of experimental data. In addition, the dependence of half-lives on excitation energies of daughter nuclei has been investigated. It is shown that the influence on half-lives becomes stronger and stronger with the increase of the excitation energies.
引用
收藏
页码：287 / 295
页数：9
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