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Alpha-decay lifetimes semiempirical relationship including shell effects

Abstract : A new version of the semiempirical formula based on fission approach of alpha decay is derived, by using the optimum values of the fitting parameters determined for even-even nuclei, combined with hindrance factors for even-odd, odd-even, and odd-odd nuclides. The deviations from experimental data for two regions of nuclear chart (493 alpha emitters with Z=52-118 and 142 transuranium nuclei including superheavies (Z=92-118), respectively) are compared with those obtained by using the universal curve and the Viola-Seaborg semiempirical relationship.
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Contributor : Dominique Girod <>
Submitted on : Monday, February 5, 2007 - 11:11:26 AM
Last modification on : Friday, February 12, 2021 - 10:58:06 AM

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D.N. Poenaru, R.A. Gherghescu, N. Carjan. Alpha-decay lifetimes semiempirical relationship including shell effects. EPL - Europhysics Letters, European Physical Society/EDP Sciences/Società Italiana di Fisica/IOP Publishing, 2007, 77, pp.62001. ⟨10.1209/0295-5075/77/62001⟩. ⟨in2p3-00128963⟩



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