Optimal reactions for the synthesis of superheavy nucleus ^(270)Hs 被引量：2

Optimal reactions for the synthesis of superheavy nucleus ^(270)Hs

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摘要 The superheavy nucleus 270Hs is expected to be a “double-magic” deformed nucleus. We have calculated its cross sections of evaporation residue for the reactions 248Cm(26Mg,4n)270Hs, 244Pu(30Si,4n)270Hs, 238U(36S,4n)270Hs and 226Ra(48Ca,4n)270Hs using a two-parameter Smoluchowski equation. It is found from our results that 226Ra(48Ca,4n)270Hs and 238U(36S,4n)270Hs are two optimal reactions for the synthesis of the superheavy nucleus 270Hs due to their large negative Q-values. The superheavy nucleus 270Hs is expected to be a “double-magic” deformed nucleus. We have calculated its cross sections of evaporation residue for the reactions 248Cm(26Mg,4n)270Hs, 244Pu(30Si,4n)270Hs, 238U(36S,4n)270Hs and 226Ra(48Ca,4n)270Hs using a two-parameter Smoluchowski equation. It is found from our results that 226Ra(48Ca,4n)270Hs and 238U(36S,4n)270Hs are two optimal reactions for the synthesis of the superheavy nucleus 270Hs due to their large negative Q-values.

作者 LIU Zuhua1,3 & BAO Jingdong1,2 1. Key Laboratory of Beam Technology and Material Modification of Ministry of Education, Beijing Normal University, Beijing 100875, China 2. Physics Department, Beijing Normal University, Beijing 100875, China 3. China Institute of Atomic Energy, Beijing 102413, China

出处《Science China(Physics,Mechanics & Astronomy)》 SCIE EI CAS 2006年第6期641-648,共8页 中国科学：物理学、力学、天文学（英文版）

基金 This work was supported by the National Natural Science Founda tion of China (Grant Nos.10235020 and 10235030).

关键词 diffused fusion barrier Smoluchowski equation superheavy nuclei. diffused fusion barrier, Smoluchowski equation, superheavy nuclei.

分类号 O571 [理学—粒子物理与原子核物理]

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