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超重核294118和291116及其α衰变链上各核素半衰期的研究

苏昕宁 张鸿飞 # 左维 李君清

苏昕宁, 张鸿飞, #, 左维, 李君清. 超重核294118和291116及其α衰变链上各核素半衰期的研究[J]. 原子核物理评论, 2009, 26(3): 177-182. doi: 10.11804/NuclPhysRev.26.03.177
引用本文: 苏昕宁, 张鸿飞, #, 左维, 李君清. 超重核294118和291116及其α衰变链上各核素半衰期的研究[J]. 原子核物理评论, 2009, 26(3): 177-182. doi: 10.11804/NuclPhysRev.26.03.177
SU Xin-ning, ZHANG Hong-fei, #, ZUO Wei, . Half lives of Superheavy Nuclei in 294118 and 291116 α decay Chain within Generalized Liquid Drop Model[J]. Nuclear Physics Review, 2009, 26(3): 177-182. doi: 10.11804/NuclPhysRev.26.03.177
Citation: SU Xin-ning, ZHANG Hong-fei, #, ZUO Wei, . Half lives of Superheavy Nuclei in 294118 and 291116 α decay Chain within Generalized Liquid Drop Model[J]. Nuclear Physics Review, 2009, 26(3): 177-182. doi: 10.11804/NuclPhysRev.26.03.177

超重核294118和291116及其α衰变链上各核素半衰期的研究

doi: 10.11804/NuclPhysRev.26.03.177
详细信息
    通讯作者: 张鸿飞

Half lives of Superheavy Nuclei in 294118 and 291116 α decay Chain within Generalized Liquid Drop Model

  • 摘要: 运用推广的液滴模型(GLDM)确定了超重核294118和291116及其α衰变链上各核素的衰变势垒, 采用量子力学中的WKB方法计算α衰变中的势垒穿透几率, 对该链上各原子核的α衰变半衰期进行了研究。 此外, 还利用Royer公式对该链上各原子核的α衰变半衰期进行了计算。 结果表明, GLDM 考虑亲和能与Royer公式给出的α衰变半衰期与超重核区的实验值符合很好, 验证了GLDM和Royer公式在超重核区的适用性,可以用来预测超重核的半衰期。 最后, 预言了Z=118 和116 同位素链上各核素的半衰期, 结果表明, 在Z=118和116中存在α衰变长寿命同位素, 这需要实验上的检验。The αdecay potential barrier of the newly synthesized superheavy nuclei starting from 294118 and 291116 have been determined and their halflives have been studied with the Generalized Liquid Drop Model(GLDM) connected with WKB approximation and Royer’s formulae.The αdecay halflives of the nuclei belonging to the superheavy nuclei starting from 294118 and 291116 have been calculated.The calculated results are in agreement with the experimental data, which show that the α decay halflives of superheavy nuclei with the GLDM and Royer’s formulae can be applied in the studying on superheavy nuclei successfully.Finally, the halflives of Z=118 and 116 isotopes have been predicted, and the results suggest there may be some longlived superheavy nuclei for αdecay in those isotopes.
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出版历程
  • 收稿日期:  1900-01-01
  • 修回日期:  1900-01-01
  • 刊出日期:  2009-09-20

超重核294118和291116及其α衰变链上各核素半衰期的研究

doi: 10.11804/NuclPhysRev.26.03.177
    通讯作者: 张鸿飞

摘要: 运用推广的液滴模型(GLDM)确定了超重核294118和291116及其α衰变链上各核素的衰变势垒, 采用量子力学中的WKB方法计算α衰变中的势垒穿透几率, 对该链上各原子核的α衰变半衰期进行了研究。 此外, 还利用Royer公式对该链上各原子核的α衰变半衰期进行了计算。 结果表明, GLDM 考虑亲和能与Royer公式给出的α衰变半衰期与超重核区的实验值符合很好, 验证了GLDM和Royer公式在超重核区的适用性,可以用来预测超重核的半衰期。 最后, 预言了Z=118 和116 同位素链上各核素的半衰期, 结果表明, 在Z=118和116中存在α衰变长寿命同位素, 这需要实验上的检验。The αdecay potential barrier of the newly synthesized superheavy nuclei starting from 294118 and 291116 have been determined and their halflives have been studied with the Generalized Liquid Drop Model(GLDM) connected with WKB approximation and Royer’s formulae.The αdecay halflives of the nuclei belonging to the superheavy nuclei starting from 294118 and 291116 have been calculated.The calculated results are in agreement with the experimental data, which show that the α decay halflives of superheavy nuclei with the GLDM and Royer’s formulae can be applied in the studying on superheavy nuclei successfully.Finally, the halflives of Z=118 and 116 isotopes have been predicted, and the results suggest there may be some longlived superheavy nuclei for αdecay in those isotopes.

English Abstract

苏昕宁, 张鸿飞, #, 左维, 李君清. 超重核294118和291116及其α衰变链上各核素半衰期的研究[J]. 原子核物理评论, 2009, 26(3): 177-182. doi: 10.11804/NuclPhysRev.26.03.177
引用本文: 苏昕宁, 张鸿飞, #, 左维, 李君清. 超重核294118和291116及其α衰变链上各核素半衰期的研究[J]. 原子核物理评论, 2009, 26(3): 177-182. doi: 10.11804/NuclPhysRev.26.03.177
SU Xin-ning, ZHANG Hong-fei, #, ZUO Wei, . Half lives of Superheavy Nuclei in 294118 and 291116 α decay Chain within Generalized Liquid Drop Model[J]. Nuclear Physics Review, 2009, 26(3): 177-182. doi: 10.11804/NuclPhysRev.26.03.177
Citation: SU Xin-ning, ZHANG Hong-fei, #, ZUO Wei, . Half lives of Superheavy Nuclei in 294118 and 291116 α decay Chain within Generalized Liquid Drop Model[J]. Nuclear Physics Review, 2009, 26(3): 177-182. doi: 10.11804/NuclPhysRev.26.03.177

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