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首页> 外文期刊>Physica Scripta: An International Journal for Experimental and Theoretical Physics >Exotic decay in proton-rich Nd isotopes
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Exotic decay in proton-rich Nd isotopes

机译：富含质子的Nd同位素的外来衰变

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摘要

Exotic decay of various Nd isotopes emitting He-4, Be-8, C-12, Ne-20, Mg-24, Si-28 and S-32 was studied taking the potential barrier as the sum of Coulomb and proximity potentials. The predicted half-lives are well within the present upper limit for measurements (T-1/2 < 10(30) s). It is found that O-16 and Ne-20 emissions from Nd-120 are the most favourable for measurements with T-1/2 approximate to 10(10) s. The predicted lowest half-life time for Ne-20 emission from Nd-120, stresses the role of the doubly magic Sn-100 daughter in the exotic decay process. The nuclear structure effect and shell effect are evident from the Geiger-Nuttall plots for different clusters. It is found that the presence of neutron excess in the parent nuclei slows down the exotic decay process.
机译：以势垒为库伦势和邻近势之和，研究了发射He-4，Be-8，C-12，Ne-20，Mg-24，Si-28和S-32的各种Nd同位素的外来衰变。预测的半衰期恰好在当前的测量上限内（T-1 / 2 <10（30）s）。已经发现，Nd-120的O-16和Ne-20排放最适合T-1 / 2约为10（10）s的测量。从Nd-120发出的Ne-20的预计最低半衰期时间强调了双魔Sn-100女儿在外来衰变过程中的作用。核结构效应和壳效应从不同簇的盖格-纳特尔图可以看出。发现母核中过量的中子会减慢外来衰变过程。

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