Empirical formula for β^--decay half-lives of r-process nuclei

查看全文 作　　者：Yong [1]Zhou;ZhiHong [1]Li;YouBao [1]Wang;YongShou [1]Chen;Bing [1]Guo;Jun [1]Su;YunJu [1]Li;ShengQuan [1]Yan;XinYue [1]Li;ZhiYu [1]Han;YangPing [1]Shen;Lin [1]Gan;Sheng [1]Zeng;Gang [1]Lian;WeiPing [1]Liu

机构地区：[1]China Institute of Atomic Energy

出　　处：《Science China(Physics,Mechanics & Astronomy)》索引2017年第60卷第8期,共7页

基　　金：supported by the National Natural Science Foundation of China(Grant Nos.11490563 and 11375269);the National Basic Research Program of China(Grant No.2013CB834406);the National Key Research and Development Program of China(Grant No.2016YFA0400502) 摘　　要：Experimental data ofβ--decay half-lives of nuclei with atomic number between 20 and 190 are investigated.A systematic formula has been proposed to calculateβ^--decay half-lives of neutron-rich nuclei,with a particular consideration on shell and pair effects,the decay energy Q as well as the nucleon numbers(Z,N).Although the formula has relatively few parameters,it reproduces the experimentalβ^--decay half-lives of neutron-rich nuclei very well.The predicted half-lives for the r-process relevant nuclei obtained with the current formula serve as reliable input in the r-process model calculations. 关键词：经验公式半衰期核衰变丰中子核 Β衰变实验数据原子序数过程模型

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Empirical formula for β^--decay half-lives of r-process nuclei

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