MICROSCOPIC ANALYSIS OF THE α-DECAY IN HEAVY AND SUPERHEAVY NUCLEI

机译：重核和超重核中α衰变的显微分析

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We analyze the α-decay along N — Z chains in heavy and superheavy nuclei. The α-particle preformation amplitude is estimated within the pairing model, while the penetration part by the deformed WKB approach. We show that for N > 126 the plateau condition is not fulfilled along any α-chain, namely the logarithmic derivative of the Coulomb function changes much faster in comparison with that of the preformation factor. We correct this deficiency by considering an α-cluster factor in the preformation amplitude, depending upon the Coulomb parameter. For superheavy region an additional dependence upon the number of interacting α-particles indicates a clustering feature connected with a larger radial component.

机译：我们分析了重核和超重核沿N Z链的α衰变。在配对模型中估计了α粒子的预成形振幅，而通过变形的WKB方法估算了穿透部分。我们表明，当N> 126时，沿任何α链都无法满足平稳条件，即，与预成型因子相比，库仑函数的对数导数变化快得多。我们通过考虑预成型振幅中的α聚类因子来纠正此缺陷，具体取决于库仑参数。对于超重区域，对相互作用的α粒子数量的额外依赖性表示与较大径向分量相关的聚类特征。

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来源
《International Workshop on the New Applications of Nuclear Fission; 20030907-12; Bucharest(RO)》|2003年|P.101-109|共9页
会议地点 Bucharest(RO)
作者
D. S. DELION; A. SANDULESCU; W. GREINER;
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作者单位

National Institute of Physics and Nuclear Engineering, POB MG-6, Bucharest-Magurele, Romania;

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原文格式 PDF
正文语种 eng
中图分类自然科学史;原子核物理学、高能物理学;
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MICROSCOPIC ANALYSIS OF THE α-DECAY IN HEAVY AND SUPERHEAVY NUCLEI

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