Alpha Decay,Shell Structure,and New Elements |
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| Authors: | REN Zhong-Zhou TAI Fei SHEN Wen-Qing |
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| Institution: | 1. Department of Physics, Nanjing University, Nanjing 210008, China
;2. Center of Theoretical Nuclear Physics, National Laboratory
of Heavy-Ion Accelerator, Lanzhou 730000, China
;3. Shanghai Institute of Nuclear Research, Academia Sinica,
Shanghai 201800, China |
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| Abstract: | We systematically analyze the experimental data of alpha decay in
even-even heavy nuclei far from stability and find that the
Geiger-Nuttall law breaks for an isotopic chain when its neutron
number is across a magic number or there is a deformed subshell.
This break can be used to identify new magic numbers of superheavy nuclei. It is also discovered that there is a new
linear relation between the logarithm of half-life and the reciprocal of the square root of decay energy for N=126 and N=152 isotones. It could be a new law of alpha decay for nuclei with
magic neutron numbers but the physics behind it is to be explored.
The significance of these researches for the search of new
elements is discussed. |
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| Keywords: | alpha decay magic number superheavy element |
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