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The European Physical Journal A

, Volume 44, Issue 2, pp 287–295 | Cite as

Properties of \( \alpha\) -decay to ground and excited states of heavy nuclei

Regular Article - Theoretical Physics

Abstract.

Branching ratios and half-lives of \( \alpha\) -decay to the ground-state rotational bands as well as the high-lying excited states of even-even nuclei have been calculated in the framework of the generalized liquid drop model (GLDM) and Royer’s formula that we improved very recently. The calculation covers the isotopic chains from Ra to No in the mass regions 222 \( \leq\) A \( \leq\) 252 and 88 \( \leq\) Z \( \leq\) 102 . The agreement between the calculated results and the experimental data indicates the reliability of investigating the properties of the unfavored \( \alpha\) -decay with our method, especially the improved Royer’s formula, which is very valuable for the analysis of experimental data. In addition, the dependence of half-lives on excitation energies of daughter nuclei has been investigated. It is shown that the influence on half-lives becomes stronger and stronger with the increase of the excitation energies.

Keywords

Excited State Excitation Energy Daughter Nucleus Superheavy Nucleus Agreement Number 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© SIF, Springer-Verlag Berlin Heidelberg 2010

Authors and Affiliations

  • Y. Z. Wang
    • 1
  • J. Z. Gu
    • 1
    • 2
  • J. M. Dong
    • 3
    • 4
  • B. B. Peng
    • 1
  1. 1.China Institute of Atomic EnergyBeijingPRC
  2. 2.Center of Theoretical Nuclear PhysicsNational Laboratory of Heavy Ion Accelerator of LanzhouLanzhouPRC
  3. 3.Institute of Modern PhysicsChinese Academy of SciencesLanzhouPRC
  4. 4.School of Nuclear Science and TechnologyLanzhou UniversityLanzhouPRC

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