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Model-independent trend of α-preformation probability

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Abstract

The α-preformation probability is directly deduced from experimental α decay energies and half-lives in an analytical way without any modified parameters. Several other model-deduced results, are used to compare with that of the present study. The key role played by the shell effects in the α-preformation process is indicated in all these cases. In detail, the α-preformation factors of different theoretical extractions are found to have similar behavior for one given isotopic chain, implying the model-independent varying trend of the preformation probability of α particle. In addition, the formation probability of heavier particle in cluster radioactivity is also obtained, and this confirms the relationship between the cluster preformation factor and the product of the cluster and daughter proton numbers.

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Authors and Affiliations

  1. Department of Physics, Nanjing University, Nanjing, 210093, China

    YiBin Qian & ZhongZhou Ren

  2. Joint Center of Nuclear Science and Technology, Nanjing University, Nanjing, 210093, China

    YiBin Qian & ZhongZhou Ren

  3. Kavli Institute for Theoretical Physics China, Beijing, 100190, China

    ZhongZhou Ren

  4. Center of Theoretical Nuclear Physics, National Laboratory of Heavy-Ion Accelerator, Lanzhou, 730000, China

    ZhongZhou Ren

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  1. YiBin Qian
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  2. ZhongZhou Ren
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Correspondence to ZhongZhou Ren.

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Contributed by REN ZhongZhou (Associate Editor)

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Qian, Y., Ren, Z. Model-independent trend of α-preformation probability. Sci. China Phys. Mech. Astron. 56, 1520–1524 (2013). https://doi.org/10.1007/s11433-013-5159-5

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  • DOI: https://doi.org/10.1007/s11433-013-5159-5

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