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Half-Lives of Superheavy Nuclei in Z=113 Alpha Decay Chain |
| DONG Jian-Min1, ZHANG Hong-Fei1, ZUO Wei1,2, LI Jun-Qing2 |
| 1School of Nuclear Science and Technology, Lanzhou University, Lanzhou 7300002Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000 |
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DONG Jian-Min, ZHANG Hong-Fei, ZUO Wei et al 2008 Chin. Phys. Lett. 25 4230-4232 |
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Abstract
The generalized liquid drop model (GLDM), including the proximity effects and centrifugal potential, and the cluster model with Cosh potential are used to study the half-lives of some Z=113 isotopes and their α-decay products. The experimental half-lives of 284113, 283113, 282113 and their α-decay products are well reproduced by the two models when zero angular momenta transfer is assumed. For 278113 and its α-decay products, both the GLDM and the cluster model could provide satisfactory results if we assume the α particle carry five units of angular momenta, which indicates that possible nonzero angular momenta transfer and need further experimental measurements with high precision. Finally, we show that half-lives of α-decay are quite sensitive to the angular momentum transfers, and a formula could be used to describe the correlation between α-decay half-life and angular momentum transfer successfully.
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| Keywords:
21.10.Tg
21.60.Gx
23.60.+e
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Received: 19 August 2008
Published: 27 November 2008
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