Systematic studies on α-decay half-lives for super heavy nuclei

ZHANG Di-Da; CHEN Bao-Qiu; MA Zhong-Yu

doi:10.1088/1674-1137/34/3/006

Chinese Physics C> 2010, Vol. 34> Issue(3) : 334-339 DOI: 10.1088/1674-1137/34/3/006

Systematic studies on α-decay half-lives for super heavy nuclei

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Abstract：
Radioactive decay of super heavy nuclei via the emission of α-particles has been studied theoretically in the preformed cluster model (PCM). The nucleus-nucleus (NN) potential is obtained by double folding the density distributions of the α-particle and the daughter nucleus with a realistic effective interaction. The M3Y effective interaction, supplemented by a zero-range pseudo-potential for exchange term, is used to calculate the NN potential. The α decay half-lives for 317 nuclei at Z=102—120 are performed in the PCM framework with the theoretical Q values extracted from the Möller-Nix-Kratz and Liran-Marinov-Zeldes mass tables and are compared with the experimental data. The calculated results are also compared with those obtained by using Q values from the Muntian-Hofmann-Patyk-Sobiczewski and Myers-Swiatecki mass estimates.

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ZHANG Di-Da, CHEN Bao-Qiu and MA Zhong-Yu. Systematic studies on α-decay half-lives for super heavy nuclei[J]. Chinese Physics C, 2010, 34(3): 334-339. doi: 10.1088/1674-1137/34/3/006

ZHANG Di-Da, CHEN Bao-Qiu and MA Zhong-Yu. Systematic studies on α-decay half-lives for super heavy nuclei[J]. Chinese Physics C, 2010, 34(3): 334-339. doi: 10.1088/1674-1137/34/3/006 shu

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Received: 2009-07-28
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沈阳化工大学材料科学与工程学院沈阳 110142

Systematic studies on α-decay half-lives for super heavy nuclei

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Systematic studies on α-decay half-lives for super heavy nuclei

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