Alpha Decay, Shell Structure, and New Elements |
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| Authors: | REN Zhong-Zhou TAI Fei SHEN Wen-Qing |
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| Affiliation: | Department of Physics, Nanjing University, Nanjing 210008, China;Center of Theoretical Nuclear Physics, National Laboratory of Heavy-Ion Accelerator, Lanzhou 730000, China Department of Physics, Nanjing University, Nanjing 210008, China 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 stabilityand find that the Geiger-Nuttall law breaks for an isotopic chain when its neutron number is across a magic numberor there is a deformed subshell. This break can be used to identify new magic numbers of superheavy nuclei. It is alsodiscovered that there is a new linear relation between the logarithm of half-life and the reciprocal of the square root ofdecay energy for N = 126 and N = 152 isotones. It could be a new law of alpha decay for nuclei with magic neutronnumbers but the physics behind it is to be explored. The significance of these researches for the search of new elementsis discussed. |
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| Keywords: | alpha decay magic number superheavy element |
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