Alpha-decay branching ratios to high-lying excited-states of the 242Cm→238pu→ 234U →230Th→226Rn decay chain

We present a systematic calculation on the 0c-decay branching ratios to excited-states of an even-even α-decay chain 242Cm→238pu→234U →230Th→226Rn by the improved barrier penetration approach. The changes of the parities between the parent nuclei and the daughter nuclei are properly taken into account. The theoretical values are compared with the available experimental data and the deviation between them is within a factor of 5 in most cases.

作 者： ZHANG Jin-Juan XU Chang REN Zhong-Zhou   作者單位： ZHANG Jin-Juan,XU Chang(Department of Physics, Nanjing University, Nanjing 210008, China)

REN Zhong-Zhou(Department of Physics, Nanjing University, Nanjing 210008, China;Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator of Lanzhou, Lanzhou 730000, China) 

刊 名： 中國(guó)物理C（英文版）  ISTIC 英文刊名： CHINESE PHYSICS　C  年，卷(期)： 2009 33(9)  分類號(hào)： O4  關(guān)鍵詞： alpha-decay   branching ratios   high-lying excited states   parity  

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